Annual Percent
1960-01-01 22.978100000000000
1961-01-01 22.531400000000000
1962-01-01 22.490200000000000
1963-01-01 22.380000000000000
1964-01-01 21.968000000000004
1965-01-01 21.277100000000000
1966-01-01 23.406500000000000
1967-01-01 23.480800000000000
1968-01-01 23.204600000000000
1969-01-01 25.327400000000000
1970-01-01 18.436100000000000
1971-01-01 20.947100000000000
1972-01-01 23.008100000000000
1973-01-01 22.466800000000000
1974-01-01 21.730400000000000
1975-01-01 24.627800000000000
1976-01-01 27.674500000000000
1977-01-01 28.772900000000000
1978-01-01 35.194500000000000
1979-01-01 34.311000000000000
1980-01-01 30.618100000000000
1981-01-01 33.602900000000000
1982-01-01 38.728600000000000
1983-01-01 50.754600000000000
1984-01-01 55.503000000000000
1985-01-01 59.313000000000000
1986-01-01 60.903200000000000
1987-01-01 60.645300000000000
1988-01-01 60.674100000000000
1989-01-01 59.102400000000000
1990-01-01 53.836400000000000
1991-01-01 52.602400000000000
1992-01-01 51.510400000000000
1993-01-01 49.864900000000000
1994-01-01 48.410000000000000
1995-01-01 49.111200000000000
1996-01-01 49.692900000000000
1997-01-01 54.373800000000000
1998-01-01 58.600300000000000
1999-01-01 57.133999999999990
2000-01-01 51.002800000000000
2001-01-01 52.661500000000000
2002-01-01 54.522500000000000
2003-01-01 43.610500000000000
2004-01-01 39.888900000000000
2005-01-01 39.813000000000000
2006-01-01 42.239600000000000
2007-01-01 40.944800000000000
2008-01-01 36.481400000000000
2009-01-01 61.930200000000000
2010-01-01 57.810400000000000
2011-01-01 46.547700000000000
2012-01-01 52.223000000000000
2013-01-01 55.844300000000000
2014-01-01 58.878500000000000
2015-01-01 68.264100000000000
2016-01-01 74.739100000000000