
Data Series
Period | Period Average | End of Period |
Jun-2022 | 10.33 | 10.28 |
May-2022 | 10.35 | 10.36 |
Apr-2022 | 10.5 | 10.41 |
Mar-2022 | 10.57 | 10.57 |
Feb-2022 | 10.72 | 10.7 |
Jan-2022 | 10.79 | 10.76 |
Dec-2021 | 10.84 | 10.83 |
Nov-2021 | 10.91 | 10.87 |
Oct-2021 | 10.99 | 11.04 |
Sep-2021 | 11.07 | 11.01 |
Aug-2021 | 11.15 | 11.16 |
Jul-2021 | 11.2 | 11.2 |
Jun-2021 | 11.27 | 11.24 |
May-2021 | 11.31 | 11.3 |
Apr-2021 | 11.36 | 11.31 |
Mar-2021 | 11.3 | 11.28 |
Feb-2021 | 11.34 | 11.35 |
Jan-2021 | 11.36 | 11.34 |
Dec-2020 | 11.49 | 11.41 |
Nov-2020 | 11.71 | 11.68 |
Oct-2020 | 11.69 | 11.66 |
Sep-2020 | 11.72 | 11.67 |
Aug-2020 | 11.75 | 11.78 |
Jul-2020 | 11.74 | 11.79 |
Jun-2020 | 11.71 | 11.68 |
May-2020 | 11.72 | 11.74 |
Apr-2020 | 11.84 | 11.76 |
Mar-2020 | 12.45 | 12.11 |
Feb-2020 | 12.51 | 12.57 |
Jan-2020 | 12.6 | 12.56 |
Dec-2019 | 12.6 | 12.64 |
Nov-2019 | 12.57 | 12.54 |
Oct-2019 | 12.54 | 12.61 |
Sep-2019 | 12.54 | 12.51 |
Aug-2019 | 12.58 | 12.54 |
Jul-2019 | 12.63 | 12.59 |
Jun-2019 | 12.66 | 12.7 |
May-2019 | 12.6 | 12.59 |
Apr-2019 | 12.63 | 12.61 |
Mar-2019 | 12.67 | 12.61 |
Feb-2019 | 12.71 | 12.73 |
Jan-2019 | 12.74 | 12.77 |
Dec-2018 | 12.71 | 12.75 |
Nov-2018 | 12.72 | 12.73 |
Oct-2018 | 12.7 | 12.68 |
Sep-2018 | 12.78 | 12.76 |
Aug-2018 | 12.74 | 12.8 |
Jul-2018 | 12.81 | 12.82 |
Jun-2018 | 12.89 | 12.83 |
May-2018 | 12.99 | 12.94 |
Apr-2018 | 13.2 | 13.12 |
Mar-2018 | 13.22 | 13.23 |
Feb-2018 | 13.24 | 13.19 |
Jan-2018 | 13.2 | 13.3 |
Dec-2017 | 13.09 | 13.13 |
Nov-2017 | 13.11 | 13.12 |
Oct-2017 | 13.22 | 13.1 |
Sep-2017 | 13.49 | 13.33 |
Aug-2017 | 13.76 | 13.57 |
Jul-2017 | 13.87 | 13.92 |
Jun-2017 | 13.91 | 13.98 |
May-2017 | 13.85 | 13.89 |
Apr-2017 | 13.73 | 13.82 |
Mar-2017 | 13.73 | 13.73 |
Feb-2017 | 13.72 | 13.71 |
Jan-2017 | 13.71 | 13.75 |
Dec-2016 | 13.61 | 13.64 |
Nov-2016 | 13.64 | 13.63 |
Oct-2016 | 13.7 | 13.72 |
Sep-2016 | 13.8 | 13.76 |
Aug-2016 | 13.79 | 13.78 |
Jul-2016 | 13.64 | 13.66 |
Jun-2016 | 13.7 | 13.67 |
May-2016 | 13.75 | 13.65 |
Apr-2016 | 13.87 | 13.83 |
Mar-2016 | 13.78 | 13.88 |
Feb-2016 | 14.14 | 13.89 |
Jan-2016 | 14.05 | 14.07 |
Dec-2015 | 14.05 | 14.1 |
Nov-2015 | 14 | 13.9 |
Oct-2015 | 14.24 | 14.15 |
Sep-2015 | 14.24 | 14.2 |
Aug-2015 | 14.59 | 14.21 |
Jul-2015 | 15.16 | 15.13 |
Jun-2015 | 15.31 | 15.23 |
May-2015 | 15.34 | 15.15 |
Apr-2015 | 15.39 | 15.52 |
Mar-2015 | 15.62 | 15.43 |
Feb-2015 | 16.04 | 15.88 |
Jan-2015 | 16.89 | 16.23 |
Dec-2014 | 17.36 | 17.14 |
Nov-2014 | 17.76 | 17.52 |
Oct-2014 | 18.06 | 17.99 |
Sep-2014 | 18.56 | 18.12 |
Aug-2014 | 18.83 | 18.76 |
Jul-2014 | 18.97 | 18.87 |
Jun-2014 | 19.01 | 19 |
May-2014 | 19.11 | 19.05 |
Apr-2014 | 19.17 | 19.18 |
Mar-2014 | 19.4 | 19.19 |
Feb-2014 | 19.32 | 19.41 |
Jan-2014 | 19.28 | 19.32 |
Dec-2013 | 19.14 | 19.31 |
Nov-2013 | 18.77 | 18.86 |
Oct-2013 | 18.52 | 18.55 |
Sep-2013 | 18.43 | 18.43 |
Aug-2013 | 18.74 | 18.56 |
Jul-2013 | 18.94 | 18.96 |
Jun-2013 | 19.08 | 18.87 |
May-2013 | 19.01 | 18.95 |
Apr-2013 | 19.13 | 19.16 |
Mar-2013 | 19.07 | 19 |
Feb-2013 | 19.3 | 19.17 |
Jan-2013 | 19.28 | 19.4 |
Dec-2012 | 19.21 | 19.27 |
Nov-2012 | 18.92 | 19.06 |
Oct-2012 | 18.97 | 19.02 |
Sep-2012 | 18.94 | 19.01 |
Aug-2012 | 18.51 | 18.83 |
Jul-2012 | 18.63 | 18.39 |
Jun-2012 | 19.41 | 19.09 |
May-2012 | 20.13 | 19.63 |
Apr-2012 | 20.38 | 20.35 |
Mar-2012 | 20.29 | 20.35 |
Feb-2012 | 20.21 | 20.3 |
Jan-2012 | 19.86 | 20.06 |
Dec-2011 | 20.15 | 19.83 |
Nov-2011 | 20.3 | 20.26 |
Oct-2011 | 20.37 | 20.62 |
Sep-2011 | 20.4 | 20.23 |
Aug-2011 | 20.78 | 20.82 |
Jul-2011 | 20.73 | 20.84 |
Jun-2011 | 20.93 | 20.84 |
May-2011 | 20.94 | 20.92 |
Apr-2011 | 21.03 | 21.13 |
Mar-2011 | 20.86 | 20.99 |
Feb-2011 | 20.7 | 20.79 |
Jan-2011 | 20.48 | 20.64 |
Dec-2010 | 20.23 | 20.27 |
Nov-2010 | 20.38 | 20.04 |
Oct-2010 | 20.44 | 20.35 |
Sep-2010 | 20.16 | 20.27 |
Aug-2010 | 20.21 | 20.04 |
Jul-2010 | 20.33 | 20.42 |
Jun-2010 | 20.15 | 20.22 |
May-2010 | 20.3 | 20.26 |
Apr-2010 | 20.63 | 20.54 |
Mar-2010 | 20.68 | 20.62 |
Feb-2010 | 20.64 | 20.62 |
Jan-2010 | 20.92 | 20.81 |
Dec-2009 | 20.85 | 20.68 |
Nov-2009 | 20.88 | 20.9 |
Oct-2009 | 20.87 | 20.84 |
Sep-2009 | 20.8 | 20.81 |
Aug-2009 | 20.69 | 20.73 |
Jul-2009 | 20.63 | 20.63 |
Jun-2009 | 20.67 | 20.58 |
May-2009 | 20.85 | 20.85 |
Apr-2009 | 20.56 | 20.75 |
Mar-2009 | 20.7 | 20.13 |
Feb-2009 | 20.98 | 20.9 |
Jan-2009 | 20.95 | 20.94 |
Dec-2008 | 21.33 | 21.21 |
Nov-2008 | 22.25 | 21.45 |
Oct-2008 | 24.18 | 22.53 |
Sep-2008 | 24.71 | 24.64 |
Aug-2008 | 24.58 | 24.74 |
Jul-2008 | 24.34 | 24.51 |
Jun-2008 | 23.91 | 24.03 |
May-2008 | 23.82 | 24 |
Apr-2008 | 23.18 | 23.61 |
Mar-2008 | 23.02 | 23.11 |
Feb-2008 | 22.61 | 22.82 |
Jan-2008 | 22.5 | 22.67 |
Dec-2007 | 22.49 | 22.56 |
Nov-2007 | 22.59 | 22.59 |
Oct-2007 | 22.22 | 22.7 |
Sep-2007 | 21.91 | 21.95 |
Aug-2007 | 21.7 | 21.75 |
Jul-2007 | 21.67 | 21.74 |
Jun-2007 | 21.45 | 21.4 |
May-2007 | 21.33 | 21.38 |
Apr-2007 | 21.36 | 21.48 |
Mar-2007 | 21.02 | 21.05 |
Feb-2007 | 21.08 | 20.98 |
Jan-2007 | 21.02 | 21.04 |
Dec-2006 | 21.17 | 21.18 |
Nov-2006 | 20.83 | 21.24 |
Oct-2006 | 20.47 | 20.41 |
Sep-2006 | 20.88 | 20.91 |
Aug-2006 | 20.69 | 20.6 |
Jul-2006 | 20.45 | 20.37 |
Jun-2006 | 20.59 | 20.53 |
May-2006 | 20.96 | 20.72 |
Apr-2006 | 20.66 | 20.88 |
Mar-2006 | 20.53 | 20.59 |
Feb-2006 | 20.55 | 20.31 |
Jan-2006 | 20.65 | 20.65 |
Dec-2005 | 20.64 | 20.68 |
Nov-2005 | 20.5 | 20.26 |
Oct-2005 | 20.7 | 20.62 |
Sep-2005 | 20.8 | 20.7 |
Aug-2005 | 20.66 | 20.41 |
Jul-2005 | 20.49 | 20.45 |
Jun-2005 | 20.57 | 20.54 |
May-2005 | 20.71 | 20.48 |
Apr-2005 | 20.86 | 20.89 |
Mar-2005 | 20.95 | 20.82 |
Feb-2005 | 20.86 | 20.97 |
Jan-2005 | 20.89 | 20.85 |
Dec-2004 | 20.89 | 20.92 |
Nov-2004 | 20.74 | 20.8 |
Oct-2004 | 20.74 | 20.7 |
Sep-2004 | 20.89 | 20.77 |
Aug-2004 | 20.88 | 20.86 |
Jul-2004 | 21.11 | 20.81 |
Jun-2004 | 21.22 | 21.33 |
May-2004 | 21.19 | 21.21 |
Apr-2004 | 21.17 | 21.07 |
Mar-2004 | 21.1 | 21.1 |
Feb-2004 | 21.2 | 21.08 |
Jan-2004 | 21.16 | 21.33 |
Dec-2003 | 21.59 | 21.24 |
Nov-2003 | 21.05 | 21.92 |
Oct-2003 | 19.7 | 19.99 |
Sep-2003 | 19.39 | 19.45 |
Aug-2003 | 19.42 | 19.37 |
Jul-2003 | 19.39 | 19.39 |
Jun-2003 | 19.16 | 19.23 |
May-2003 | 19.05 | 19.16 |
Apr-2003 | 18.92 | 18.94 |
Mar-2003 | 18.92 | 19.12 |
Feb-2003 | 18.94 | 18.91 |
Jan-2003 | 19.03 | 18.93 |
Dec-2002 | 18.98 | 18.89 |
Nov-2002 | 19.01 | 18.88 |
Oct-2002 | 19.02 | 19.06 |
Sep-2002 | 19.01 | 19.06 |
Aug-2002 | 18.89 | 19.05 |
Jul-2002 | 18.9 | 19.01 |
Jun-2002 | 18.95 | 18.91 |
May-2002 | 18.95 | 19.03 |
Apr-2002 | 18.86 | 18.83 |
Mar-2002 | 19.02 | 18.78 |
Feb-2002 | 19.12 | 19.13 |
Jan-2002 | 19.49 | 19.25 |
Dec-2001 | 19.61 | 19.51 |
Nov-2001 | 19.52 | 19.58 |
Oct-2001 | 19.78 | 19.86 |
Sep-2001 | 19.85 | 19.96 |
Aug-2001 | 19.67 | 19.55 |
Jul-2001 | 19.11 | 19.32 |
Jun-2001 | 19.02 | 18.99 |
May-2001 | 19.4 | 18.95 |
Apr-2001 | 19.81 | 19.93 |
Mar-2001 | 19.96 | 19.37 |
Feb-2001 | 20.18 | 20.42 |
Jan-2001 | 20.68 | 20.57 |
Dec-2000 | 19.93 | 20.53 |
Nov-2000 | 19.31 | 19.54 |
Oct-2000 | 19.13 | 19.19 |
Sep-2000 | 19.22 | 19.35 |
Aug-2000 | 19.73 | 19.55 |
Jul-2000 | 20.27 | 19.98 |
Jun-2000 | 20.35 | 20.47 |
May-2000 | 19.83 | 20.15 |
Apr-2000 | 20.43 | 20.04 |
Mar-2000 | 20.95 | 20.52 |
Feb-2000 | 21.74 | 21.26 |
Jan-2000 | 22.03 | 21.77 |
Dec-1999 | 22.09 | 22.14 |
Nov-1999 | 22.23 | 22.14 |
Oct-1999 | 22.62 | 22.35 |
Sep-1999 | 22.66 | 22.8 |
Aug-1999 | 22.62 | 22.72 |
Jul-1999 | 22.02 | 22.44 |
Jun-1999 | 22.04 | 21.94 |
May-1999 | 22.48 | 22.24 |
Apr-1999 | 22.63 | 22.46 |
Mar-1999 | 23.13 | 22.78 |
Feb-1999 | 23.76 | 23.32 |
Jan-1999 | 24.74 | 24.77 |
Dec-1998 | 25.13 | 24.87 |
Nov-1998 | 25.52 | 25.2 |
Oct-1998 | 26.2 | 25.83 |
Sep-1998 | 25.92 | 26.07 |
Aug-1998 | 25.46 | 25.48 |
Jul-1998 | 25.72 | 25.7 |
Jun-1998 | 25.74 | 25.77 |
May-1998 | 25.74 | 25.62 |
Apr-1998 | 25.69 | 25.62 |
Mar-1998 | 25.62 | 25.55 |
Feb-1998 | 25.85 | 25.85 |
Jan-1998 | 25.86 | 25.95 |
Dec-1997 | 26.22 | 26.14 |
Nov-1997 | 26.63 | 25.99 |
Oct-1997 | 26.34 | 26.4 |
Sep-1997 | 26.09 | 26.42 |
Aug-1997 | 25.61 | 26.2 |
Jul-1997 | 26.09 | 25.91 |
Jun-1997 | 26.7 | 26.32 |
May-1997 | 26.85 | 27.06 |
Apr-1997 | 26.73 | 26.31 |
Mar-1997 | 26.89 | 26.57 |
Feb-1997 | 26.94 | 27.01 |
Jan-1997 | 27.03 | 27.05 |
Dec-1996 | 27.5 | 27.63 |
Nov-1996 | 27.93 | 27.33 |
Oct-1996 | 27.93 | 28.7 |
Sep-1996 | 28.35 | 27.92 |
Aug-1996 | 28.38 | 28.38 |
Jul-1996 | 28.52 | 29.35 |
Jun-1996 | 28.49 | 28.51 |
May-1996 | 28.51 | 28.38 |
Apr-1996 | 29.41 | 28.92 |
Mar-1996 | 29.59 | 29.59 |
Feb-1996 | 29.77 | 29.88 |
Jan-1996 | 30.06 | 29.6 |
Dec-1995 | 30.85 | 30.63 |
Nov-1995 | 31.35 | 31.13 |
Oct-1995 | 31.9 | 31.46 |
Sep-1995 | 31.61 | 32 |
Aug-1995 | 31.93 | 31.52 |
Jul-1995 | 32.62 | 32.45 |
Jun-1995 | 33.91 | 32.92 |
May-1995 | 35.79 | 35.38 |
Apr-1995 | 37.01 | 36.5 |
Mar-1995 | 37.79 | 37.51 |
Feb-1995 | 37.96 | 37.85 |
Jan-1995 | 38.47 | 38.64 |
Dec-1994 | 38.62 | 38.23 |
Nov-1994 | 40.03 | 39.06 |
Oct-1994 | 40.78 | 40.75 |
Sep-1994 | 42.65 | 40.74 |
Aug-1994 | 43.9 | 43.4 |
Jul-1994 | 43.95 | 43.99 |
Jun-1994 | 44.71 | 44.2 |
May-1994 | 45.91 | 45.51 |
Apr-1994 | 52.75 | 46.77 |
Mar-1994 | 71.22 | 71.29 |
Feb-1994 | 70.66 | 70.81 |
Jan-1994 | 70.78 | 70.53 |
Dec-1993 | 71.42 | 71.78 |
Nov-1993 | 71.77 | 71.24 |
Oct-1993 | 73.26 | 72.15 |
Sep-1993 | 73.63 | 74.16 |
Aug-1993 | 71.76 | 72.43 |
Jul-1993 | 73.41 | 72.62 |
Jun-1993 | 76.48 | 76.63 |
May-1993 | 76.2 | 76.18 |
Apr-1993 | 75.51 | 76.39 |
Mar-1993 | 75.37 | 74.58 |
Feb-1993 | 79.44 | 75.61 |
Jan-1993 | 81.37 | 80.61 |
Dec-1992 | 83.61 | 83.77 |
Nov-1992 | 91.05 | 84.3 |
Oct-1992 | 108.61 | 93.84 |
Sep-1992 | 124.46 | 119.04 |
Aug-1992 | 114.75 | 115.13 |
Jul-1992 | 87.98 | 104.29 |
Jun-1992 | 79.02 | 79.67 |
May-1992 | 73.26 | 75.78 |
Apr-1992 | 65.18 | 72.56 |
Mar-1992 | 53.06 | 57.53 |
Feb-1992 | 42.94 | 49.3 |
Jan-1992 | 41.42 | 40.62 |
Dec-1991 | 40.67 | 41.66 |
Nov-1991 | 39.95 | 40.42 |
Oct-1991 | 46.53 | 39.28 |
Sep-1991 | 51.09 | 51.35 |
Aug-1991 | 50.36 | 49.94 |
Jul-1991 | 49.78 | 50.4 |
Jun-1991 | 51.52 | 51.07 |
May-1991 | 52.55 | 52.11 |
Apr-1991 | 54.54 | 52.71 |
Mar-1991 | 59.31 | 55.08 |
Feb-1991 | 68.61 | 65.63 |
Jan-1991 | 77.92 | 76.74 |
Dec-1990 | 70.71 | 70.76 |
Nov-1990 | 72.76 | 68.23 |
Oct-1990 | 92.98 | 72.41 |
Sep-1990 | 117.87 | 100.53 |
Aug-1990 | 87.25 | 111.42 |
Jul-1990 | 76.67 | 75.79 |
Jun-1990 | 81.21 | 79.24 |
May-1990 | 80.48 | 79.08 |
Apr-1990 | 74.18 | 76.97 |
Mar-1990 | 70.53 | 72.1 |
Feb-1990 | 70.46 | 70.5 |
Jan-1990 | 66.09 | 66.44 |
Dec-1989 | 57.55 | 61.29 |
Nov-1989 | 52.56 | 54.25 |
Oct-1989 | 63.25 | 53.34 |
Sep-1989 | 73.79 | 68.39 |
Aug-1989 | 78.4 | 78.18 |
Jul-1989 | 75.02 | 75.26 |
Jun-1989 | 74.11 | 74.56 |
May-1989 | 73.93 | 74.23 |
Apr-1989 | 75.84 | 74.53 |
Mar-1989 | 73.75 | 72.33 |
Feb-1989 | 80.52 | 72.57 |
Jan-1989 | 83.5 | 81.89 |
Dec-1988 | 80.55 | 83.33 |
Nov-1988 | 80.34 | 78.25 |
Oct-1988 | 71.86 | 76.53 |
Sep-1988 | 62.72 | 64.92 |
Aug-1988 | 58.64 | 67.27 |
Jul-1988 | 61.05 | 58.02 |
Jun-1988 | 63.73 | 62.67 |
May-1988 | 69.62 | 66.18 |
Apr-1988 | 71.32 | 70.37 |
Mar-1988 | 70.35 | 69.8 |
Feb-1988 | 75.93 | 71.04 |
Jan-1988 | 96.16 | 86.69 |
Dec-1987 | 102.22 | 97.43 |
Nov-1987 | 106.68 | 111.35 |
Oct-1987 | 83.31 | 107.07 |
Sep-1987 | 58.38 | 61.99 |
Aug-1987 | 49.04 | 57.6 |
Jul-1987 | 35.98 | 38.87 |
Jun-1987 | 29 | 30.49 |
May-1987 | 25.8 | 26.35 |
Apr-1987 | 25.2 | 25.49 |
Mar-1987 | 24.47 | 24.35 |
Feb-1987 | 0 | 0 |
Jan-1987 | 0 | 0 |
Dec-1986 | 14.24 | 18.04 |
Nov-1986 | 12.35 | 13.89 |
Oct-1986 | 9.94 | 10.6 |
Sep-1986 | 9.3 | 9.61 |
Aug-1986 | 9.45 | 8.89 |
Jul-1986 | 9.32 | 9.94 |
Jun-1986 | 8.67 | 9.07 |
May-1986 | 6.11 | 6.88 |
Apr-1986 | 5.12 | 5.58 |
Mar-1986 | 4.23 | 4.8 |
Feb-1986 | 4.63 | 4.21 |
Jan-1986 | 4.24 | 5.12 |
Dec-1985 | 3.76 | 3.79 |
Nov-1985 | 3.61 | 3.58 |
Oct-1985 | 3.69 | 3.45 |
Sep-1985 | 3.72 | 3.79 |
Aug-1985 | 3.51 | 3.71 |
Jul-1985 | 3.14 | 3.21 |
Jun-1985 | 3.08 | 3.08 |
May-1985 | 3.22 | 3.12 |
Apr-1985 | 3.42 | 3.38 |
Mar-1985 | 3.42 | 3.46 |
Feb-1985 | 2.73 | 3.07 |
Jan-1985 | 1.97 | 2.28 |
Dec-1984 | 1.69 | 1.74 |
Nov-1984 | 1.51 | 1.54 |
Oct-1984 | 1.54 | 1.5 |
Sep-1984 | 1.38 | 1.43 |
Aug-1984 | 1.26 | 1.34 |
Jul-1984 | 1.19 | 1.2 |
Jun-1984 | 1.22 | 1.22 |
May-1984 | 1.18 | 1.2 |
Apr-1984 | 1.16 | 1.17 |
Mar-1984 | 1.14 | 1.12 |
Feb-1984 | 1.23 | 1.2 |
Jan-1984 | 1.15 | 1.17 |
Dec-1983 | 1.1 | 1.12 |
Nov-1983 | 1.07 | 1.08 |
Oct-1983 | 1.05 | 1.05 |
Sep-1983 | 1 | 1 |
Aug-1983 | 0.97 | 0.99 |
Jul-1983 | 0.91 | 0.95 |
Jun-1983 | 0.89 | 0.89 |
May-1983 | 0.88 | 0.89 |
Apr-1983 | 0.88 | 0.88 |
Mar-1983 | 0.89 | 0.88 |
Feb-1983 | 0.86 | 0.87 |
Jan-1983 | 0.83 | 0.84 |
Dec-1982 | 0.84 | 0.82 |
Nov-1982 | 0.91 | 0.86 |
Oct-1982 | 0.91 | 0.9 |
Sep-1982 | 1 | 0.89 |
Aug-1982 | 1.09 | 1 |
Jul-1982 | 1.11 | 1.11 |
Jun-1982 | 1.11 | 1.11 |
May-1982 | 1.11 | 1.11 |
Apr-1982 | 1.09 | 1.1 |
Mar-1982 | 1.08 | 1.09 |
Feb-1982 | 1.09 | 1.09 |
Jan-1982 | 1.06 | 1.08 |
Dec-1981 | 1.06 | 1.06 |
Nov-1981 | 1.06 | 1.06 |
Oct-1981 | 1.05 | 1.05 |
Sep-1981 | 1.05 | 1.06 |
Aug-1981 | 1.04 | 1.05 |
Jul-1981 | 0.99 | 1 |
Jun-1981 | 0.98 | 0.97 |
May-1981 | 0.97 | 0.97 |
Apr-1981 | 0.96 | 0.96 |
Mar-1981 | 0.96 | 0.96 |
Feb-1981 | 0.95 | 0.96 |
Jan-1981 | 0.91 | 0.97 |
Dec-1980 | 0.93 | 0.92 |
Nov-1980 | 0.91 | 0.92 |
Oct-1980 | 0.9 | 0.9 |
Sep-1980 | 0.9 | 0.9 |
Aug-1980 | 0.9 | 0.9 |
Jul-1980 | 0.91 | 0.9 |
Jun-1980 | 0.9 | 0.9 |
May-1980 | 0.89 | 0.89 |
Apr-1980 | 0.88 | 0.89 |
Mar-1980 | 0.87 | 0.86 |
Feb-1980 | 0.88 | 0.88 |
Jan-1980 | 0.87 | 0.87 |
Dec-1979 | 0.9 | 0.87 |
Nov-1979 | 0.89 | 0.91 |
Oct-1979 | 0.87 | 0.87 |
Sep-1979 | 0.86 | 0.86 |
Aug-1979 | 0.85 | 0.85 |
Jul-1979 | 0.84 | 0.84 |
Jun-1979 | 0.84 | 0.84 |
May-1979 | 0.83 | 0.84 |
Apr-1979 | 0.81 | 0.82 |
Mar-1979 | 0.81 | 0.82 |
Feb-1979 | 0.82 | 0.82 |
Jan-1979 | 0.79 | 0.81 |
Dec-1978 | 0.78 | 0.78 |
Nov-1978 | 0.75 | 0.77 |
Oct-1978 | 0.78 | 0.78 |
Sep-1978 | 0.76 | 0.76 |
Aug-1978 | 0.75 | 0.75 |
Jul-1978 | 0.74 | 0.75 |
Jun-1978 | 0.72 | 0.73 |
May-1978 | 0.73 | 0.72 |
Apr-1978 | 0.74 | 0.73 |
Mar-1978 | 0.73 | 0.73 |
Feb-1978 | 0.73 | 0.73 |
Jan-1978 | 0.74 | 0.73 |
Dec-1977 | 0.75 | 0.74 |
Nov-1977 | 0.75 | 0.75 |
Oct-1977 | 0.75 | 0.75 |
Sep-1977 | 0.75 | 0.75 |
Aug-1977 | 0.75 | 0.75 |
Jul-1977 | 0.76 | 0.76 |
Jun-1977 | 0.74 | 0.74 |
May-1977 | 0.73 | 0.74 |
Apr-1977 | 0.73 | 0.73 |
Mar-1977 | 0.73 | 0.73 |
Feb-1977 | 0.73 | 0.73 |
Jan-1977 | 0.72 | 0.73 |
Dec-1976 | 0.69 | 0.67 |
Nov-1976 | 0.68 | 0.66 |
Oct-1976 | 0.76 | 0.71 |
Sep-1976 | 0.79 | 0.79 |
Aug-1976 | 0.78 | 0.79 |
Jul-1976 | 0.75 | 0.76 |
Jun-1976 | 0.72 | 0.74 |
May-1976 | 0.67 | 0.7 |
Apr-1976 | 0.63 | 0.64 |
Mar-1976 | 0.61 | 0.63 |
Feb-1976 | 0.59 | 0.59 |
Jan-1976 | 0.59 | 0.59 |
Dec-1975 | 0.59 | 0.59 |
Nov-1975 | 0.58 | 0.59 |
Oct-1975 | 0.58 | 0.58 |
Sep-1975 | 0.56 | 0.57 |
Aug-1975 | 0.56 | 0.55 |
Jul-1975 | 0.57 | 0.56 |
Jun-1975 | 0.58 | 0.58 |
May-1975 | 0.61 | 0.58 |
Apr-1975 | 0.58 | 0.58 |
Mar-1975 | 0.58 | 0.58 |
Feb-1975 | 0.6 | 0.58 |
Jan-1975 | 0.59 | 0.58 |
Dec-1974 | 0.58 | 0.58 |
Nov-1974 | 0.58 | 0.57 |
Oct-1974 | 0.54 | 0.55 |
Sep-1974 | 0.54 | 0.54 |
Aug-1974 | 0.55 | 0.54 |
Jul-1974 | 0.55 | 0.55 |
Jun-1974 | 0.55 | 0.55 |
May-1974 | 0.56 | 0.56 |
Apr-1974 | 0.55 | 0.57 |
Mar-1974 | 0.57 | 0.57 |
Feb-1974 | 0.56 | 0.57 |
Jan-1974 | 0.57 | 0.56 |
Dec-1973 | 0.62 | 0.6 |
Nov-1973 | 0.65 | 0.65 |
Oct-1973 | 0.67 | 0.67 |
Sep-1973 | 0.67 | 0.67 |
Aug-1973 | 0.67 | 0.66 |
Jul-1973 | 0.66 | 0.67 |
Jun-1973 | 0.66 | 0.66 |
May-1973 | 0.64 | 0.64 |
Apr-1973 | 0.66 | 0.65 |
Mar-1973 | 0.67 | 0.67 |
Feb-1973 | 0.67 | 0.68 |
Jan-1973 | 0.67 | 0.67 |
Dec-1972 | 0.67 | 0.66 |
Nov-1972 | 0.67 | 0.67 |
Oct-1972 | 0.68 | 0.67 |
Sep-1972 | 0.67 | 0.68 |
Aug-1972 | 0.66 | 0.67 |
Jul-1972 | 0.68 | 0.67 |
Jun-1972 | 0.68 | 0.68 |
May-1972 | 0.69 | 0.69 |
Apr-1972 | 0.69 | 0.69 |
Mar-1972 | 0.7 | 0.69 |
Feb-1972 | 0.69 | 0.7 |
Jan-1972 | 0.68 | 0.69 |
Dec-1971 | 0.68 | 0.68 |
Nov-1971 | 0.64 | 0.64 |
Oct-1971 | 0.64 | 0.64 |
Sep-1971 | 0.65 | 0.64 |
Aug-1971 | 0.66 | 0.65 |
Jul-1971 | 0.66 | 0.66 |
Jun-1971 | 0.66 | 0.66 |
May-1971 | 0.66 | 0.66 |
Apr-1971 | 0.66 | 0.66 |
Mar-1971 | 0.66 | 0.66 |
Feb-1971 | 0.66 | 0.66 |
Jan-1971 | 0.66 | 0.66 |
Dec-1970 | 0.66 | 0.66 |
Nov-1970 | 0.66 | 0.66 |
Oct-1970 | 0.66 | 0.66 |
Sep-1970 | 0.66 | 0.66 |
Aug-1970 | 0.66 | 0.66 |
Jul-1970 | 0.66 | 0.66 |
Jun-1970 | 0.66 | 0.66 |
May-1970 | 0.66 | 0.66 |
Apr-1970 | 0.66 | 0.66 |
Mar-1970 | 0.67 | 0.67 |
Feb-1970 | 0.67 | 0.67 |
Jan-1970 | 0.66 | 0.67 |
Dec-1969 | 0.66 | 0.66 |
Nov-1969 | 0.65 | 0.66 |
Oct-1969 | 0.66 | 0.66 |
Sep-1969 | 0.66 | 0.66 |
Aug-1969 | 0.66 | 0.66 |
Jul-1969 | 0.66 | 0.66 |
Jun-1969 | 0.66 | 0.66 |
May-1969 | 0.67 | 0.67 |
Apr-1969 | 0.66 | 0.67 |
Mar-1969 | 0.66 | 0.66 |
Feb-1969 | 0.66 | 0.66 |
Jan-1969 | 0.65 | 0.65 |
Dec-1968 | 0.64 | 0.64 |
Nov-1968 | 0.64 | 0.64 |
Oct-1968 | 0.64 | 0.64 |
Sep-1968 | 0.64 | 0.64 |
Aug-1968 | 0.64 | 0.64 |
Jul-1968 | 0.64 | 0.64 |
Jun-1968 | 0.64 | 0.64 |
May-1968 | 0.64 | 0.64 |
Apr-1968 | 0.64 | 0.64 |
Mar-1968 | 0.64 | 0.64 |
Feb-1968 | 0.63 | 0.64 |
Jan-1968 | 0.63 | 0.63 |
Dec-1967 | 0.64 | 0.63 |
Nov-1967 | 0.64 | 0.64 |
Oct-1967 | 0.65 | 0.65 |
Sep-1967 | 0.65 | 0.66 |
Aug-1967 | 0.65 | 0.65 |
Jul-1967 | 0.65 | 0.65 |
Jun-1967 | 0.66 | 0.65 |
May-1967 | 0.65 | 0.65 |
Apr-1967 | 0.65 | 0.65 |
Mar-1967 | 0.65 | 0.65 |
Feb-1967 | 0.65 | 0.65 |
Jan-1967 | 0.64 | 0.64 |
Dec-1966 | 0.64 | 0.64 |
Nov-1966 | 0.64 | 0.64 |
Oct-1966 | 0.64 | 0.64 |
Sep-1966 | 0.65 | 0.64 |
Aug-1966 | 0.64 | 0.64 |
Jul-1966 | 0.63 | 0.64 |
Jun-1966 | 0.63 | 0.63 |
May-1966 | 0.63 | 0.63 |
Apr-1966 | 0.63 | 0.63 |
Mar-1966 | 0.63 | 0.63 |
Feb-1966 | 0.63 | 0.63 |
Jan-1966 | 0.62 | 0.63 |
Dec-1965 | 0.62 | 0.62 |
Nov-1965 | 0.62 | 0.62 |
Oct-1965 | 0.62 | 0.62 |
Sep-1965 | 0.62 | 0.62 |
Aug-1965 | 0.62 | 0.62 |
Jul-1965 | 0.62 | 0.62 |
Jun-1965 | 0.62 | 0.62 |
May-1965 | 0.63 | 0.62 |
Apr-1965 | 0.63 | 0.63 |
Mar-1965 | 0.62 | 0.62 |
Feb-1965 | 0.62 | 0.62 |
Jan-1965 | 0.62 | 0.62 |
Dec-1964 | 0.62 | 0.62 |
Nov-1964 | 0.62 | 0.62 |
Oct-1964 | 0.62 | 0.62 |
Sep-1964 | 0.62 | 0.62 |
Aug-1964 | 0.62 | 0.62 |
Jul-1964 | 0.62 | 0.62 |
Jun-1964 | 0.62 | 0.62 |
May-1964 | 0.62 | 0.62 |
Apr-1964 | 0.62 | 0.62 |
Mar-1964 | 0.63 | 0.62 |
Feb-1964 | 0.63 | 0.63 |
Jan-1964 | 0 | 0.63 |