Annual Percent
1972-01-01 2.627520000000000
1973-01-01 4.740830000000000
1974-01-01 6.248540000000000
1975-01-01 12.227900000000000
1976-01-01 24.044900000000000
1977-01-01 22.403600000000000
1978-01-01 20.000999999999998
1979-01-01 18.367900000000000
1980-01-01 20.303100000000000
1981-01-01 23.557900000000000
1982-01-01 23.122900000000000
1983-01-01 22.551100000000000
1984-01-01 24.899400000000000
1985-01-01 20.468800000000000
1986-01-01 18.493200000000000
1987-01-01 13.884100000000000
1988-01-01 14.257600000000000
1989-01-01 14.856200000000000
1990-01-01 12.001600000000000
1991-01-01 10.310300000000000
1992-01-01 15.884200000000000
1993-01-01 18.554800000000000
1994-01-01 17.536900000000000
1995-01-01 18.491300000000000
1996-01-01 22.287300000000000
1997-01-01 22.841600000000000
1998-01-01 19.497900000000000
1999-01-01 20.419800000000000
2000-01-01 21.809000000000000
2001-01-01 22.408700000000000
2002-01-01 22.280100000000000
2003-01-01 21.588900000000000
2004-01-01 20.045300000000000
2005-01-01 19.230600000000000
2006-01-01 18.555800000000000
2007-01-01 19.440500000000000
2008-01-01 15.975600000000000
2009-01-01 14.547300000000000
2010-01-01 13.710100000000000
2011-01-01 12.773600000000000
2012-01-01 12.439100000000000
2013-01-01 15.904200000000000
2014-01-01 17.779100000000000
2015-01-01 14.255500000000000
2016-01-01 11.317200000000000
2017-01-01 11.061000000000000