Annual Percent
1962-01-01 11.387800000000000
1963-01-01 10.045500000000000
1964-01-01 7.681160000000000
1965-01-01 5.709600000000000
1966-01-01 6.081950000000000
1967-01-01 7.261189999999999
1968-01-01 8.639600000000000
1969-01-01 8.801520000000000
1970-01-01 9.808190000000000
1971-01-01 10.335300000000000
1972-01-01 11.042800000000000
1973-01-01 13.981000000000000
1974-01-01 15.513800000000000
1975-01-01 17.295000000000000
1976-01-01 18.549300000000000
1977-01-01 20.406400000000000
1978-01-01 21.235500000000000
1979-01-01 19.131400000000000
1980-01-01 21.836900000000000
1981-01-01 23.462400000000000
1982-01-01 24.805900000000000
1983-01-01 23.152600000000000
1984-01-01 23.469100000000000
1985-01-01 26.060800000000000
1986-01-01 22.998300000000000
1987-01-01 23.947100000000000
1988-01-01 24.727600000000000
1989-01-01 24.313500000000000
1990-01-01 22.057300000000000
1991-01-01 21.102200000000000
1992-01-01 21.102200000000000
1993-01-01 21.102200000000000
1994-01-01 21.102200000000000
1995-01-01 21.102200000000000
1996-01-01 21.102200000000000
1997-01-01 21.102200000000000
1998-01-01 21.102200000000000
1999-01-01 21.102200000000000
2000-01-01 21.102200000000000
2001-01-01 21.102200000000000
2002-01-01 21.102200000000000
2003-01-01 21.102200000000000
2004-01-01 21.102200000000000
2005-01-01 26.213400000000000
2006-01-01 20.394500000000000
2007-01-01 22.341900000000000
2008-01-01 23.864200000000000
2009-01-01 26.764700000000000
2010-01-01 24.493200000000000
2011-01-01 23.482700000000000
2012-01-01 25.548000000000002