Annual Percent
1975-01-01 65.727700000000000
1976-01-01 39.751600000000000
1977-01-01 37.768400000000000
1978-01-01 36.724000000000004
1979-01-01 29.949800000000000
1980-01-01 26.572900000000000
1981-01-01 29.319300000000000
1982-01-01 30.318400000000000
1983-01-01 32.319400000000000
1984-01-01 32.368200000000000
1985-01-01 31.090700000000000
1986-01-01 30.542700000000000
1987-01-01 33.850300000000000
1988-01-01 35.777400000000000
1989-01-01 37.184700000000000
1990-01-01 39.164800000000000
1991-01-01 40.386300000000000
1992-01-01 42.822300000000000
1993-01-01 42.644400000000000
1994-01-01 38.930500000000000
1995-01-01 42.366000000000010
1996-01-01 45.503400000000000
1997-01-01 55.886200000000000
1998-01-01 54.150300000000000
1999-01-01 55.431200000000000
2000-01-01 55.726000000000006
2001-01-01 61.591300000000000
2002-01-01 64.208800000000000
2003-01-01 64.149000000000000
2004-01-01 60.578500000000000
2005-01-01 57.317500000000000
2006-01-01 58.906800000000000
2007-01-01 59.949300000000000
2008-01-01 65.179000000000000
2009-01-01 74.048700000000000
2010-01-01 78.981500000000000
2011-01-01 77.947800000000000
2012-01-01 71.118400000000000
2013-01-01 69.444500000000000
2014-01-01 61.844900000000000
2015-01-01 53.789200000000000
2016-01-01 47.622500000000000