Annual Percent
1973-01-01 8.576989999999999
1974-01-01 9.670320000000000
1975-01-01 8.398740000000000
1976-01-01 8.168280000000001
1977-01-01 9.931010000000000
1978-01-01 14.314500000000000
1979-01-01 14.174000000000001
1980-01-01 15.814500000000000
1981-01-01 15.871700000000000
1982-01-01 15.473900000000000
1983-01-01 16.305999999999997
1984-01-01 20.595400000000000
1985-01-01 18.989600000000000
1986-01-01 17.981200000000000
1987-01-01 12.145800000000000
1988-01-01 11.689200000000000
1989-01-01 11.451700000000000
1990-01-01 11.243800000000000
1991-01-01 10.342400000000000
1992-01-01 9.480080000000001
1993-01-01 9.433200000000000
1994-01-01 9.735720000000000
1995-01-01 10.256500000000000
1996-01-01 11.267000000000001
1997-01-01 13.138900000000000
1998-01-01 14.454600000000000
1999-01-01 15.396100000000000
2000-01-01 17.065200000000000
2001-01-01 18.473600000000000
2002-01-01 19.582000000000000
2003-01-01 16.114800000000000
2004-01-01 15.116600000000000
2005-01-01 17.585800000000000
2006-01-01 21.755400000000000
2007-01-01 24.527200000000000
2008-01-01 26.782300000000000
2009-01-01 29.874700000000000
2010-01-01 33.470000000000000
2011-01-01 39.317900000000000
2012-01-01 39.737900000000000
2013-01-01 39.816700000000000
2014-01-01 40.152500000000000