Annual Percent
1961-01-01 2.0768299999999997
1962-01-01 2.1310200000000000
1963-01-01 3.2630800000000000
1964-01-01 4.5234000000000000
1965-01-01 5.1442600000000000
1966-01-01 5.4202100000000000
1967-01-01 5.8985300000000000
1968-01-01 6.2733200000000000
1969-01-01 6.5825300000000000
1970-01-01 3.8563199999999997
1971-01-01 4.0348200000000000
1972-01-01 4.4847700000000000
1973-01-01 5.6840600000000000
1974-01-01 6.0749100000000000
1975-01-01 5.7778900000000000
1976-01-01 6.5681800000000000
1977-01-01 7.0223400000000000
1978-01-01 7.1407100000000000
1979-01-01 7.5929600000000010
1980-01-01 7.7607000000000000
1981-01-01 8.4199700000000000
1982-01-01 9.0508700000000000
1983-01-01 9.2558000000000000
1984-01-01 11.5245000000000000
1985-01-01 12.5305000000000000
1986-01-01 12.7631000000000000
1987-01-01 12.6972000000000000
1988-01-01 13.3625000000000000
1989-01-01 14.2251000000000000
1990-01-01 14.4069000000000000
1991-01-01 16.2394000000000000
1992-01-01 15.5817000000000000
1993-01-01 13.7714000000000000
1994-01-01 16.1184000000000000
1995-01-01 16.4180000000000000
1996-01-01 16.2567000000000000
1997-01-01 20.0994000000000000
1998-01-01 24.8863000000000000
1999-01-01 26.2895000000000000
2000-01-01 26.4408000000000000
2001-01-01 27.9721000000000000
2002-01-01 31.6422000000000000
2003-01-01 34.6439000000000000
2004-01-01 33.1796000000000000
2005-01-01 32.5475000000000000
2006-01-01 31.0446000000000000
2007-01-01 28.5673000000000000
2008-01-01 27.3936000000000000