Annual Percent
1973-01-01 33.218500000000000
1974-01-01 31.548000000000002
1975-01-01 31.565500000000000
1976-01-01 32.986100000000000
1977-01-01 32.610100000000000
1978-01-01 30.814700000000000
1979-01-01 32.103900000000000
1980-01-01 33.893700000000000
1981-01-01 37.298900000000000
1982-01-01 44.156500000000000
1983-01-01 45.261800000000000
1984-01-01 41.674200000000000
1985-01-01 38.622200000000000
1986-01-01 40.532900000000000
1987-01-01 44.678200000000000
1988-01-01 47.044900000000000
1989-01-01 47.694400000000000
1990-01-01 34.551000000000000
1991-01-01 27.766500000000000
1992-01-01 24.217200000000000
1993-01-01 23.767900000000000
1994-01-01 26.652800000000000
1995-01-01 27.123600000000000
1996-01-01 30.897300000000000
1997-01-01 31.441600000000000
1998-01-01 32.717100000000000
1999-01-01 35.173100000000000
2000-01-01 37.326100000000000
2001-01-01 40.122000000000000
2002-01-01 41.118100000000000
2003-01-01 42.393400000000000
2004-01-01 42.413500000000000
2005-01-01 42.126600000000000
2006-01-01 42.372800000000000
2007-01-01 41.523000000000000
2008-01-01 45.306000000000004
2009-01-01 44.718600000000000
2010-01-01 42.880100000000000
2011-01-01 40.446600000000000
2012-01-01 41.970000000000000
2013-01-01 42.750300000000000
2014-01-01 41.413700000000000
2015-01-01 39.777900000000000
2016-01-01 41.828900000000000