Annual Percent
1960-01-01 23.447000000000000
1961-01-01 21.210200000000000
1962-01-01 23.387200000000000
1963-01-01 25.586900000000000
1964-01-01 26.500400000000000
1965-01-01 27.345400000000000
1966-01-01 29.695500000000000
1967-01-01 35.146600000000000
1968-01-01 38.525999999999996
1969-01-01 39.985800000000000
1970-01-01 35.349200000000000
1971-01-01 36.316800000000000
1972-01-01 29.688100000000000
1973-01-01 22.939000000000000
1974-01-01 21.336400000000000
1975-01-01 21.208100000000000
1976-01-01 23.352100000000000
1977-01-01 23.996300000000000
1978-01-01 20.152700000000000
1979-01-01 13.197500000000000
1980-01-01 11.144000000000000
1981-01-01 32.600700000000000
1982-01-01 54.089100000000000
1983-01-01 54.178200000000000
1984-01-01 56.988500000000000
1985-01-01 61.711900000000000
1986-01-01 54.892100000000000
1987-01-01 52.996300000000000
1988-01-01 54.251400000000000
1989-01-01 55.492800000000000
1990-01-01 51.579200000000000
1991-01-01 47.706600000000000
1992-01-01 47.496300000000000
1993-01-01 50.199800000000000
1994-01-01 51.373600000000000
1995-01-01 54.111300000000000
1996-01-01 58.883300000000000
1997-01-01 63.192000000000000
1998-01-01 65.795700000000000
1999-01-01 70.866400000000000
2000-01-01 71.248400000000000
2001-01-01 76.126400000000000
2002-01-01 80.702400000000000
2003-01-01 81.635400000000000
2004-01-01 78.596900000000000
2005-01-01 79.613400000000000
2006-01-01 80.510100000000000
2007-01-01 80.145600000000000
2008-01-01 84.048800000000000
2009-01-01 84.402200000000000
2010-01-01 82.236600000000000
2011-01-01 84.280500000000000
2012-01-01 75.425200000000000
2013-01-01 65.865800000000000
2014-01-01 68.996300000000000
2015-01-01 70.704500000000000
2016-01-01 72.318600000000000