Annual Percent
1975-01-01 26.389100000000000
1976-01-01 22.694000000000003
1977-01-01 23.428200000000000
1978-01-01 25.310600000000000
1979-01-01 26.869300000000000
1980-01-01 27.394200000000000
1981-01-01 27.995100000000000
1982-01-01 27.994100000000000
1983-01-01 27.573300000000000
1984-01-01 25.787100000000000
1985-01-01 25.222800000000000
1986-01-01 24.859800000000000
1987-01-01 25.571200000000000
1988-01-01 26.720100000000000
1989-01-01 30.353100000000000
1990-01-01 30.739400000000000
1991-01-01 31.893800000000000
1992-01-01 33.340900000000000
1993-01-01 34.272500000000000
1994-01-01 35.125200000000000
1995-01-01 36.917500000000000
1996-01-01 41.952500000000000
1997-01-01 44.610300000000000
1998-01-01 45.852400000000000
1999-01-01 48.673600000000000
2000-01-01 53.067600000000000
2001-01-01 51.761500000000000
2002-01-01 50.328000000000000
2003-01-01 48.491100000000000
2004-01-01 45.544500000000000
2005-01-01 44.922200000000000
2006-01-01 43.948100000000000
2007-01-01 47.367600000000000
2008-01-01 48.996100000000000
2009-01-01 50.227900000000000
2010-01-01 51.468600000000000
2011-01-01 52.731900000000000
2012-01-01 52.954300000000000
2013-01-01 52.574900000000000
2014-01-01 52.476500000000000
2015-01-01 50.721000000000004
2016-01-01 50.709500000000000