Year	Percent
1973-01-01	104.41200000000000
1974-01-01	97.21160000000000
1975-01-01	98.44230000000000
1976-01-01	104.36900000000000
1977-01-01	109.43500000000000
1978-01-01	114.02400000000000
1979-01-01	119.79299999999999
1980-01-01	103.26700000000001
1981-01-01	106.37500000000000
1982-01-01	115.00800000000000
1983-01-01	123.41300000000000
1984-01-01	125.97900000000000
1985-01-01	132.43300000000000
1986-01-01	133.40800000000000
1987-01-01	138.40800000000000
1988-01-01	142.93000000000000
1989-01-01	147.45200000000000
1990-01-01	151.16299999999998
1991-01-01	154.51100000000000
1992-01-01	155.70000000000000
1993-01-01	157.51700000000000
1994-01-01	158.32200000000000
1995-01-01	162.41700000000000
1996-01-01	162.49800000000000
1997-01-01	161.22000000000000
1998-01-01	159.68800000000000
1999-01-01	162.86500000000000
2000-01-01	158.83700000000002
2001-01-01	154.02900000000000
2002-01-01	153.84700000000000
2003-01-01	154.88100000000000
2004-01-01	155.10600000000000
2005-01-01	156.40700000000000
2006-01-01	158.09200000000000
2007-01-01	159.80400000000000
2008-01-01	162.18400000000000
2009-01-01	167.87900000000002
2010-01-01	168.25900000000001
2011-01-01	170.76600000000000
2012-01-01	176.94900000000000
2013-01-01	175.47500000000000
2014-01-01	171.99900000000002
2015-01-01	173.55599999999998
2016-01-01	176.66000000000000