Annual Percent
1971-01-01 57.750800000000000
1972-01-01 64.414400000000000
1973-01-01 80.628800000000000
1974-01-01 91.718600000000000
1975-01-01 82.979400000000000
1976-01-01 76.340400000000000
1977-01-01 87.105500000000000
1978-01-01 96.754300000000000
1979-01-01 93.089900000000000
1980-01-01 77.564300000000000
1981-01-01 67.339500000000000
1982-01-01 66.710000000000000
1983-01-01 63.030300000000000
1984-01-01 52.248500000000000
1985-01-01 40.058100000000000
1986-01-01 29.847800000000000
1987-01-01 24.546700000000000
1988-01-01 21.633300000000000
1989-01-01 21.404900000000000
1990-01-01 21.610700000000000
1991-01-01 20.735200000000000
1992-01-01 19.646700000000000
1993-01-01 17.659200000000000
1994-01-01 16.884600000000000
1995-01-01 17.504400000000000
1996-01-01 17.861400000000000
1997-01-01 18.426300000000000
1998-01-01 19.108700000000000
1999-01-01 18.491500000000000
2000-01-01 18.710100000000000
2001-01-01 20.019000000000002
2002-01-01 20.956999999999997
2003-01-01 23.771500000000000
2004-01-01 27.879800000000000
2005-01-01 30.245100000000000
2006-01-01 30.374000000000002
2007-01-01 35.197300000000000
2008-01-01 45.251300000000000
2009-01-01 44.293900000000000
2010-01-01 41.095000000000000
2011-01-01 42.423200000000000
2012-01-01 43.905400000000000
2013-01-01 42.501800000000000
2014-01-01 39.513900000000000
2015-01-01 40.316900000000000
2016-01-01 40.924900000000000