Annual Percent
1965-01-01 19.611900000000000
1966-01-01 19.557600000000000
1967-01-01 19.796500000000000
1968-01-01 19.802100000000000
1969-01-01 20.169100000000000
1970-01-01 20.522200000000000
1971-01-01 21.250500000000000
1972-01-01 23.094000000000000
1973-01-01 24.332600000000000
1974-01-01 25.316600000000000
1975-01-01 26.845500000000000
1976-01-01 26.761999999999997
1977-01-01 26.057900000000000
1978-01-01 27.391600000000000
1979-01-01 27.435600000000000
1980-01-01 28.640900000000000
1981-01-01 31.922300000000000
1982-01-01 34.843600000000000
1983-01-01 36.409200000000000
1984-01-01 39.230300000000000
1985-01-01 47.039500000000000
1986-01-01 45.700900000000000
1987-01-01 33.125800000000000
1988-01-01 34.285700000000000
1989-01-01 36.090000000000000
1990-01-01 32.985700000000000
1991-01-01 29.030800000000000
1992-01-01 29.385700000000000
1993-01-01 32.127900000000000
1994-01-01 37.941600000000000
1995-01-01 40.129100000000000
1996-01-01 41.900900000000000
1997-01-01 43.508700000000000
1998-01-01 44.034100000000000
1999-01-01 45.755800000000000
2000-01-01 45.901300000000000
2001-01-01 45.507400000000000
2002-01-01 44.962200000000000
2003-01-01 42.818800000000000
2004-01-01 41.871600000000000
2005-01-01 39.887900000000000
2006-01-01 39.028400000000000
2007-01-01 40.863000000000000
2008-01-01 42.284500000000000
2009-01-01 43.282100000000000
2010-01-01 43.065700000000000
2011-01-01 41.261300000000000
2012-01-01 39.991600000000000
2013-01-01 40.175000000000000
2014-01-01 39.672500000000000
2015-01-01 38.761700000000000
2016-01-01 39.788500000000000