Data Series

PeriodPeriod AverageEnd of Period
May-201884.4784.12
Apr-201885.2585.31
Mar-201885.5685.36
Feb-201885.2985.51
Jan-201885.1785.28
Dec-201784.6184.79
Nov-201785.3684.92
Oct-201785.4185.37
Sep-201785.3985.46
Aug-201784.9485.46
Jul-201784.1684.21
Jun-201783.2283.2
May-201783.2783.31
Apr-201783.2183.52
Mar-201785.1282.65
Feb-201789.0295.71
Jan-201780.7279.86
Dec-201681.3281.49
Nov-201698.7184.22
Oct-2016169.76169.76
Sep-2016169.95169.76
Aug-2016170.64171.7
Jul-2016170.17169.76
Jun-2016169.94169.76
May-2016170.05169.76
Apr-2016169.96169.76
Mar-2016179.33169.76
Feb-2016192.53192.53
Jan-2016192.53192.53
Dec-2015192.53192.53
Nov-2015190.85192.53
Oct-2015190.13187.73
Sep-2015192.55192.59
Aug-2015192.54192.53
Jul-2015193.12192.59
Jun-2015197.61197.57
May-2015197.6197.57
Apr-2015197.6197.57
Mar-2015197.59197.64
Feb-2015197.61197.57
Jan-2015206.97198.61
Dec-2014210.84210.84
Nov-2014210.84210.84
Oct-2014210.84210.84
Sep-2014210.84210.84
Aug-2014210.84210.84
Jul-2014210.84210.84
Jun-2014210.85210.84
May-2014212.61210.83
Apr-2014215.86215.12
Mar-2014216.55216.36
Feb-2014216.56216.57
Jan-2014216.55216.54
Dec-2013218.46217.08
Nov-2013218.87219
Oct-2013218.79218.85
Sep-2013218.37218.74
Aug-2013215.73215.8
Jul-2013215.09215.36
Jun-2013215.41214.76
May-2013216.25215.86
Apr-2013219217.4
Mar-2013222.52221.59
Feb-2013224.17223.65
Jan-2013229.53224.49
Dec-2012244.85243.58
Nov-2012246.9246.69
Oct-2012247.11246.63
Sep-2012247.38247.26
Aug-2012247.85247.07
Jul-2012248.64248.29
Jun-2012249.32248.84
May-2012249.56249.5
Apr-2012249.51249.34
Mar-2012249.81249.59
Feb-2012249.81249.92
Jan-2012249.69249.94
Dec-2011250.44249.97
Nov-2011251.89251.05
Oct-2011252.55252.49
Sep-2011252.77252.71
Aug-2011252.86253.25
Jul-2011252.98253.02
Jun-2011253.37252.54
May-2011253.5253.45
Apr-2011253.01253.49
Mar-2011254.27252.53
Feb-2011256.32255.9
Jan-2011259.23257.36
Dec-2010260.02259.71
Nov-2010261.79260.36
Oct-2010263.25261.05
Sep-2010264.32264.8
Aug-2010264.77264.2
Jul-2010264.54264.43
Jun-2010265.52264.66
May-2010268.26266.29
Apr-2010272.64271.18
Mar-2010274.73273.84
Feb-2010274.92274.59
Jan-2010276.76275.81
Dec-2009274.86274.74
Nov-2009276.05275.24
Oct-2009275.35275.44
Sep-2009273.36274.02
Aug-2009272.16272.78
Jul-2009270.39271.72
Jun-2009269.11269.49
May-2009268.1268.14
Apr-2009267.63267.6
Mar-2009267.22267.29
Feb-2009270.3269.2
Jan-2009272.27270.79
Dec-2008273.04272.97
Nov-2008272.41273.1
Oct-2008271.39270.16
Sep-2008277.27275.68
Aug-2008282.45280.96
Jul-2008283.37284.14
Jun-2008281.82282.57
May-2008281.38281.91
Apr-2008277.83280.86
Mar-2008275.6276.16
Feb-2008273.6274.28
Jan-2008273.53271.57
Dec-2007272.49272.73
Nov-2007273.54272.42
Oct-2007272.03273.22
Sep-2007267.82269.8
Aug-2007266.34266.72
Jul-2007265.35266.81
Jun-2007264.56264.82
May-2007264.87264.66
Apr-2007264.9265.05
Mar-2007264.49264.65
Feb-2007264.52264.24
Jan-2007264.22264.63
Dec-2006263.72264.68
Nov-2006263.32263.6
Oct-2006262.75262.63
Sep-2006262.59262.73
Aug-2006262.32262.29
Jul-2006262.17262.08
Jun-2006261.67261.95
May-2006261.45261.27
Apr-2006262.27261.89
Mar-2006262.58262.55
Feb-2006262.84262.97
Jan-2006262.76262.91
Dec-2005262.3262.69
Nov-2005261.63261.77
Oct-2005261.68261.77
Sep-2005261.46261.72
Aug-2005261.06260.89
Jul-2005260.76261.06
Jun-2005260.08260.48
May-2005260.03260.09
Apr-2005259.95259.8
Mar-2005259.8260.21
Feb-2005259.3259.9
Jan-2005255.36258.13
Dec-2004242.66247.03
Nov-2004241.83241.78
Oct-2004241.51241.97
Sep-2004242.09241.25
Aug-2004242.26243.54
Jul-2004242.77242.7
Jun-2004242.76242.07
May-2004243.05242.56
Apr-2004243.05243.24
Mar-2004243.57242.95
Feb-2004243.7243.56
Jan-2004244.38244.53
Dec-2003244.62245.52
Nov-2003245.14245.32
Oct-2003245.4246.32
Sep-2003245.03245.22
Aug-2003245.19244.72
Jul-2003246.14244.13
Jun-2003250.95249.12
May-2003252.48252.3
Apr-2003257.65252.72
Mar-2003264.01262.17
Feb-2003273.35270.4
Jan-2003319.83282.3
Dec-2002325.54325.4
Nov-2002325.46325.42
Oct-2002325.82325.24
Sep-2002325.56325.59
Aug-2002325.81327.72
Jul-2002325.14325.24
Jun-2002325.21323.5
May-2002325.68327.72
Apr-2002326.08326.83
Mar-2002324325.59
Feb-2002325.87324.88
Jan-2002327.18325.24
Dec-2001340.68329.15
Nov-2001353.3353.58
Oct-2001353.63353.21
Sep-2001354353.68
Aug-2001359.13353.68
Jul-2001382.46381.79
Jun-2001388.73386.74
May-2001388.55389.08
Apr-2001388.71391.56
Mar-2001389.09391.05
Feb-2001388.92388.9
Jan-2001392.86391.3
Dec-2000394.67386.04
Nov-2000398.46398.81
Oct-2000406.89398.67
Sep-2000426.68423.1
Aug-2000430.46428.88
Jul-2000433.02432.26
Jun-2000435.36434.16
May-2000438.22437.65
Apr-2000439.13439.47
Mar-2000439.47439.34
Feb-2000439.65439.76
Jan-2000440.18440.04
Dec-1999440.64441.27
Nov-1999440.56441.14
Oct-1999441.46441.46
Sep-1999441.43441.46
Aug-1999441.48442.29
Jul-1999441.33441.61
Jun-1999441.61441.65
May-1999441.73442.13
Apr-1999441.6438.37
Mar-1999441.97441.32
Feb-1999441.98441.09
Jan-1999441.89441.88
Dec-1998442.03442.89
Nov-1998442.8443.04
Oct-1998442.89439.8
Sep-1998443.83444.44
Aug-1998443.84445.36
Jul-1998444.45442.11
Jun-1998445.57446.59
May-1998445.57445.14
Apr-1998446.08445.49
Mar-1998447.05445.07
Feb-1998448.2447.6
Jan-1998448.52447.56
Dec-1997449.2449.65
Nov-1997450.17449.64
Oct-1997450.89449.9
Sep-1997451.69451.58
Aug-1997452.56451.88
Jul-1997453.36453.01
Jun-1997453.89453.63
May-1997454.51454.83
Apr-1997454.98455.14
Mar-1997455.72455.53
Feb-1997456.08456.23
Jan-1997456.38455.81
Dec-1996457.05456.43
Nov-1996457.66457.09
Oct-1996458.27457.58
Sep-1996459.04458.52
Aug-1996460.44459.57
Jul-1996461.23461.24
Jun-1996461.17462.67
May-1996462.71460.92
Apr-1996463.6461.96
Mar-1996465.97465.87
Feb-1996467.75467.29
Jan-1996468.92468.02
Dec-1995469.57468.93
Nov-1995471.02470.09
Oct-1995473.03471.91
Sep-1995474.21473.47
Aug-1995475.21474.98
Jul-1995475.63474.74
Jun-1995476.33475.46
May-1995476.78475.03
Apr-1995479.2477.63
Mar-1995481.25478.97
Feb-1995482.77482.75
Jan-1995483.74484.05
Dec-1994484.93483.66
Nov-1994488.38488.09
Oct-1994490.92489.97
Sep-1994492.64491.62
Aug-1994494.45493.58
Jul-1994495496.01
Jun-1994496.37495.59
May-1994498.03496.76
Apr-1994499.78499.36
Mar-1994501.65501.03
Feb-1994503.92502.36
Jan-1994505.89505.36
Dec-1993507.81506.96
Nov-1993510.02508.72
Oct-1993511.69510.54
Sep-1993514.78512.18
Aug-1993516.13516.62
Jul-1993516.27514.5
Jun-1993517.05516.67
May-1993518.18517.27
Apr-1993520.41520.32
Mar-1993522.77520.16
Feb-1993531.89521.56
Jan-1993547.1546
Dec-1992554.91551.12
Nov-1992575.55561.92
Oct-1992680.08591.69
Sep-1992781.15762.2
Aug-1992715.82718.15
Jul-1992557.49650.54
Jun-1992536.18512.21
May-1992510.26528.8
Apr-1992433.69480.84
Mar-1992356.24384.73
Feb-1992285.57336.48
Jan-1992273.82263.58
Dec-1991275.12276.68
Nov-1991277.16276.57
Oct-1991279.71278.71
Sep-1991271.16281.23
Aug-1991273.82281.08
Jul-1991274.28267.24
Jun-1991286.34284.88
May-1991317.33272.59
Apr-1991313.94310.56
Mar-1991327.51312.56
Feb-1991376.7369.71
Jan-1991352.79391.44
Dec-1990288.13306.92
Nov-1990257.32255.16
Oct-1990316.67249.69
Sep-1990395.86339
Aug-1990284.29366.71
Jul-1990245.04246.37
Jun-1990248.29246.53
May-1990239.44237.25
Apr-1990221.29228.02
Mar-1990212.41216.98
Feb-1990212.75214.23
Jan-1990211.28211.59
Dec-1989186.31198.57
Nov-1989164.99173.26
Oct-1989175.26166.09
Sep-1989196.62180.94
Aug-1989208.46208.48
Jul-1989197.65199.88
Jun-1989196.79196.14
May-1989203.84200.3
Apr-1989218.32214.53
Mar-1989198.85208.22
Feb-1989216.77195.36
Jan-1989226.71221.94
Dec-1988220.9227.19
Nov-1988221.78216.18
Oct-1988197.68209.69
Sep-1988172.62178.66
Aug-1988157.17185.11
Jul-1988152.84152.2
Jun-1988155.49153.28
May-1988452.1159.01
Apr-1988529.18522.14
Mar-1988523.38519.29
Feb-1988544.32528.57
Jan-1988665.53614.29
Dec-1987681.94650
Nov-1987711.72742.86
Oct-1987555.78714.29
Sep-1987389.49413.57
Aug-1987327.21384.29
Jul-1987240259.29
Jun-1987192.44203.39
May-1987170.67174.29
Apr-1987166.68168.57
Mar-1987151.45161.07
Feb-1987130.77124.64
Jan-198700
Dec-198699.64124.29
Nov-198684.9794.79
Oct-198667.2873.46
Sep-198662.2564.14
Aug-198661.5357.86
Jul-198661.3865
Jun-198657.7160
May-198640.6346.29
Apr-198634.2336.86
Mar-198628.1132.17
Feb-198631.1227.79
Jan-198628.9134.64
Dec-198525.8625.86
Nov-198525.0224.57
Oct-198525.7323.97
Sep-198526.5126.5
Aug-198524.8426.26
Jul-198522.4722.71
Jun-198522.422.36
May-198523.5422.74
Apr-198524.9424.63
Mar-198525.3525.21
Feb-198520.2622.86
Jan-198514.516.74
Dec-198412.3512.7
Nov-198410.9111.24
Oct-198411.2210.86
Sep-19849.9910.39
Aug-19848.999.57
Jul-19848.58.61
Jun-19848.68.61
May-19848.38.42
Apr-19848.068.2
Mar-19847.917.73
Feb-19848.668.36
Jan-19848.118.32
Dec-19837.747.84
Nov-19837.497.53
Oct-19837.297.31
Sep-19836.996.92
Aug-19836.726.89
Jul-19836.246.57
Jun-19836.096.06
May-19835.986.09
Apr-19835.935.96
Mar-19835.955.95
Feb-19835.715.77
Jan-19835.485.65
Dec-19825.615.44
Nov-19826.175.78
Oct-19826.126.07
Sep-19826.76
Aug-19827.286.71
Jul-19827.377.36
Jun-19827.327.34
May-19827.097.11
Apr-19827.097.06
Mar-19826.937.06
Feb-19826.946.99
Jan-19826.716.81
Dec-19816.626.61
Nov-19816.66.57
Oct-19816.586.57
Sep-19816.616.61
Aug-19816.676.69
Jul-19816.276.38
Jun-19816.156.14
May-19816.026.04
Apr-19815.755.82
Mar-19815.715.67
Feb-19815.615.71
Jan-19815.365.54
Dec-19805.285.21
Nov-19805.115.17
Oct-19804.975
Sep-19804.914.92
Aug-19804.894.9
Jul-19804.874.88
Jun-19804.874.87
May-19804.884.85
Apr-19804.94.87
Mar-19804.844.88
Feb-19804.724.76
Jan-19804.674.7
Dec-19794.824.65
Nov-19794.874.9
Oct-19794.744.77
Sep-19794.674.69
Aug-19794.644.65
Jul-19794.634.64
Jun-19794.664.64
May-19794.644.74
Apr-19794.544.58
Mar-19794.494.53
Feb-19794.514.51
Jan-19794.374.47
Dec-19787.757.68
Nov-19787.647.74
Oct-19787.597.45
Sep-19787.567.58
Aug-19787.527.55
Jul-19787.457.51
Jun-19787.417.39
May-19787.487.41
Apr-19787.517.49
Mar-19787.517.48
Feb-19787.587.52
Jan-19787.647.59
Dec-19777.797.67
Nov-19777.857.86
Oct-19777.917.88
Sep-19777.967.92
Aug-19777.977.97
Jul-19777.978.02
Jun-19777.857.86
May-19777.827.83
Apr-19777.777.78
Mar-19777.777.76
Feb-19777.87.75
Jan-19777.667.75
Dec-19767.47.49
Nov-19767.267.08
Oct-19768.127.62
Sep-19768.468.46
Aug-19768.398.46
Jul-19768.058.18
Jun-19767.677.92
May-19767.097.41
Apr-19766.716.77
Mar-19766.446.64
Feb-19766.256.23
Jan-19766.246.26
Dec-19756.26.21
Nov-19756.116.18
Oct-19756.026.03
Sep-19755.886.01
Aug-19755.815.75
Jul-19755.795.83
Jun-19755.695.68
May-19755.75.69
Apr-19755.725.71
Mar-19755.735.73
Feb-19755.985.69
Jan-19755.985.84
Dec-19745.965.88
Nov-19746.045.93
Oct-19745.715.85
Sep-19745.775.75
Aug-19745.815.8
Jul-19745.795.83
Jun-19745.895.85
May-19745.945.98
Apr-19745.856.01
Mar-19746.116.01
Feb-19746.156.11
Jan-19746.356.26
Dec-19735.796.41
Nov-19735.866.59
Oct-19735.786.49
Sep-19735.846.49
Aug-19735.86.47
Jul-19735.456.29
Jun-19735.756.16
May-19735.866.41
Apr-19736.156.7
Mar-19736.26.9
Feb-19736.627.03
Jan-19736.946.92
Dec-19726.936.92
Nov-19726.936.92
Oct-19726.946.95
Sep-19726.886.92
Aug-19726.886.9
Jul-19726.916.83
Jun-19727.016.95
May-19727.047.04
Apr-19727.067.08
Mar-19727.187.11
Feb-19727.227.24
Jan-19727.237.24
Dec-19717.217.27
Nov-19717.297.29
Oct-19717.297.31
Sep-19717.337.29
Aug-19717.457.41
Jul-19717.527.54
Jun-19717.527.54
May-19717.517.52
Apr-19717.527.52
Mar-19717.497.54
Feb-19717.487.5
Jan-19717.487.5
Dec-19707.477.47
Nov-19707.477.45
Oct-19707.487.45
Sep-19707.527.52
Aug-19707.527.52
Jul-19707.527.52
Jun-19707.527.52
May-19707.517.52
Apr-19707.527.52
Mar-19707.67.59
Feb-19707.577.57
Jan-19707.527.57
Dec-19697.457.47
Nov-19697.437.45
Oct-19697.467.45
Sep-19697.527.52
Aug-19697.497.5
Jul-19697.457.47
Jun-19697.537.45
May-19697.647.64
Apr-19697.547.61
Mar-19697.57.52
Feb-19697.447.5
Jan-19697.377.41
Dec-19687.37.31
Nov-19687.297.31
Oct-19687.297.31
Sep-19687.297.29
Aug-19687.297.31
Jul-19687.287.29
Jun-19687.257.27
May-19687.257.27
Apr-19687.247.24
Mar-19687.237.24
Feb-19687.27.22
Jan-19687.217.2
Dec-19677.227.2
Nov-19677.327.31
Oct-19677.417.41
Sep-19677.437.45
Aug-19677.437.43
Jul-19677.437.43
Jun-19677.447.43
May-19677.377.43
Apr-19677.387.36
Mar-19677.377.38
Feb-19677.347.34
Jan-19677.317.31
Dec-19667.37.29
Nov-19667.297.29
Oct-19667.277.31
Sep-19667.357.31
Aug-19667.247.31
Jul-19667.187.22
Jun-19667.177.15
May-19667.157.18
Apr-19667.147.15
Mar-19667.117.13
Feb-19667.117.13
Jan-19667.17.11
Dec-19657.067.06
Nov-19657.067.06
Oct-19657.067.08
Sep-19657.067.08
Aug-19657.057.06
Jul-19657.027.04
Jun-19657.067.04
May-19657.117.08
Apr-19657.117.11
Mar-19657.077.08
Feb-19657.067.06
Jan-19657.067.06
Dec-19647.067.08
Nov-19647.047.04
Oct-19647.027.04
Sep-19647.057.04
Aug-19647.017.08
Jul-19647.047.04
Jun-19647.067.06
May-19647.067.08
Apr-19647.097.08
Mar-19647.17.08
Feb-19647.157.15
Jan-19647.147.18