Annual Percent
1960-01-01 12.671000000000000
1961-01-01 11.924100000000000
1962-01-01 12.397800000000000
1963-01-01 13.560900000000000
1964-01-01 13.862000000000000
1965-01-01 15.373200000000000
1966-01-01 16.781100000000000
1967-01-01 16.445800000000000
1968-01-01 14.822600000000000
1969-01-01 13.416400000000000
1970-01-01 17.348200000000000
1971-01-01 14.932700000000000
1972-01-01 13.938900000000000
1973-01-01 14.034200000000000
1974-01-01 13.740400000000000
1975-01-01 13.807200000000000
1976-01-01 14.919100000000000
1977-01-01 14.510800000000000
1978-01-01 14.870100000000000
1979-01-01 18.799300000000000
1980-01-01 18.850300000000000
1981-01-01 21.512700000000000
1982-01-01 24.215000000000000
1983-01-01 32.825700000000000
1984-01-01 42.457200000000000
1985-01-01 35.741400000000000
1986-01-01 29.039800000000000
1987-01-01 26.893300000000000
1988-01-01 25.606500000000000
1989-01-01 8.829800000000000
1990-01-01 8.730960000000001
1991-01-01 4.900350000000000
1992-01-01 8.193210000000000
1993-01-01 8.388800000000000
1994-01-01 11.160800000000000
1995-01-01 13.629900000000000
1996-01-01 16.967300000000000
1997-01-01 22.676600000000000
1998-01-01 30.612100000000000
1999-01-01 28.409500000000000
2000-01-01 29.002100000000000
2001-01-01 26.772100000000000
2002-01-01 26.489600000000000
2003-01-01 27.715400000000000
2004-01-01 27.716800000000000
2005-01-01 27.206600000000000
2006-01-01 26.041300000000000
2007-01-01 24.948400000000000
2008-01-01 24.369800000000000
2009-01-01 25.703300000000000
2010-01-01 27.305700000000000
2011-01-01 26.859100000000000
2012-01-01 27.025800000000000
2013-01-01 29.441100000000000
2014-01-01 30.486000000000000
2015-01-01 31.708800000000000
2016-01-01 33.666100000000000