Annual Percent
1960-01-01 94.482800000000000
1961-01-01 93.624200000000000
1962-01-01 92.121200000000000
1963-01-01 81.341500000000000
1964-01-01 76.885600000000000
1965-01-01 67.327700000000000
1966-01-01 59.172500000000000
1967-01-01 54.866500000000000
1968-01-01 50.914800000000000
1969-01-01 47.921100000000000
1970-01-01 65.649100000000000
1971-01-01 84.619700000000000
1972-01-01 77.654100000000000
1973-01-01 53.971700000000000
1974-01-01 43.922900000000000
1975-01-01 40.669300000000000
1976-01-01 42.845600000000000
1977-01-01 51.011000000000000
1978-01-01 45.751900000000000
1979-01-01 38.774500000000000
1980-01-01 50.478800000000000
1981-01-01 43.336600000000000
1982-01-01 34.294000000000004
1983-01-01 52.882200000000000
1984-01-01 53.891600000000000
1985-01-01 62.644600000000000
1986-01-01 68.509300000000000
1987-01-01 70.368000000000000
1988-01-01 73.342000000000000
1989-01-01 45.823800000000000
1990-01-01 42.654200000000000
1991-01-01 39.800200000000000
1992-01-01 42.100500000000000
1993-01-01 43.345500000000000
1994-01-01 41.801900000000000
1995-01-01 41.065700000000000
1996-01-01 38.397400000000000
1997-01-01 45.595100000000000
1998-01-01 44.479700000000000
1999-01-01 50.741900000000000
2000-01-01 43.259100000000000
2001-01-01 46.216800000000000
2002-01-01 49.230600000000000
2003-01-01 49.780600000000000
2004-01-01 57.965600000000000
2005-01-01 67.367300000000000
2006-01-01 62.470100000000000
2007-01-01 57.348400000000000
2008-01-01 62.355200000000000
2009-01-01 66.776300000000000
2010-01-01 60.190500000000000
2011-01-01 55.776100000000000
2012-01-01 58.655100000000000
2013-01-01 64.858900000000000
2014-01-01 64.858900000000000
2015-01-01 64.858900000000000
2016-01-01 27.889200000000000