Annual Percent
1962-01-01 18.206500000000000
1963-01-01 17.363600000000000
1964-01-01 18.021500000000000
1965-01-01 19.789300000000000
1966-01-01 21.770100000000000
1967-01-01 22.706700000000000
1968-01-01 18.467500000000000
1969-01-01 17.683600000000000
1970-01-01 9.764289999999999
1971-01-01 9.268850000000000
1972-01-01 10.212700000000000
1973-01-01 8.238630000000000
1974-01-01 9.910060000000001
1975-01-01 12.535600000000000
1976-01-01 13.256800000000000
1977-01-01 12.209000000000001
1978-01-01 13.707500000000000
1979-01-01 13.796800000000000
1980-01-01 14.321400000000000
1981-01-01 14.134700000000000
1982-01-01 14.204400000000000
1983-01-01 14.763000000000000
1984-01-01 16.533200000000000
1985-01-01 19.118200000000000
1986-01-01 19.160300000000000
1987-01-01 18.422800000000000
1988-01-01 20.149700000000000
1989-01-01 18.614300000000000
1990-01-01 15.618500000000000
1991-01-01 15.792300000000000
1992-01-01 17.308000000000000
1993-01-01 17.449100000000000
1994-01-01 15.701700000000000
1995-01-01 15.234700000000000
1996-01-01 17.084600000000000
1997-01-01 18.024100000000000
1998-01-01 18.515200000000000
1999-01-01 17.215300000000000
2000-01-01 18.263100000000000
2001-01-01 17.756500000000000
2002-01-01 20.750400000000000
2003-01-01 26.038100000000000
2004-01-01 26.764900000000000
2005-01-01 25.101300000000000
2006-01-01 24.486900000000000
2007-01-01 24.197500000000000
2008-01-01 23.585300000000000
2009-01-01 22.583200000000000
2010-01-01 23.106300000000000
2011-01-01 22.594000000000000
2012-01-01 25.530200000000000
2013-01-01 26.878000000000000
2014-01-01 26.583400000000000
2015-01-01 27.235800000000000
2016-01-01 26.921000000000000