Annual Percent
1960-01-01 91.79270000000000
1961-01-01 91.01490000000000
1962-01-01 91.67170000000000
1963-01-01 93.62830000000000
1964-01-01 93.56560000000000
1965-01-01 93.46850000000000
1966-01-01 94.77640000000000
1967-01-01 96.49460000000000
1968-01-01 97.72000000000000
1969-01-01 98.29080000000000
1970-01-01 98.32110000000000
1971-01-01 97.82500000000000
1972-01-01 95.53550000000000
1973-01-01 93.30240000000000
1974-01-01 92.18240000000000
1975-01-01 87.13060000000000
1976-01-01 73.23510000000000
1977-01-01 67.33640000000000
1978-01-01 68.51480000000000
1979-01-01 58.27270000000000
1980-01-01 50.74190000000000
1981-01-01 51.32420000000000
1982-01-01 54.63520000000000
1983-01-01 54.62770000000000
1984-01-01 51.39440000000000
1985-01-01 52.88880000000000
1986-01-01 57.20330000000000
1987-01-01 65.31700000000000
1988-01-01 75.50890000000000
1989-01-01 77.76910000000000
1990-01-01 78.76450000000000
1991-01-01 82.58250000000000
1992-01-01 89.66420000000000
1993-01-01 88.18299999999999
1994-01-01 86.74380000000000
1995-01-01 85.11090000000000
1996-01-01 81.26890000000000
1997-01-01 74.98160000000000
1998-01-01 68.96010000000000
1999-01-01 68.45540000000000
2000-01-01 70.99010000000000
2001-01-01 74.51590000000000
2002-01-01 76.70060000000000
2003-01-01 76.73960000000000
2004-01-01 75.76800000000000
2005-01-01 77.02860000000000
2006-01-01 79.09740000000000
2007-01-01 82.13160000000000
2008-01-01 83.05430000000000
2009-01-01 80.02840000000000
2010-01-01 81.30199999999999
2011-01-01 84.62580000000000
2012-01-01 85.55440000000000
2013-01-01 85.62780000000000
2014-01-01 82.10400000000000
2015-01-01 81.26890000000000
2016-01-01 83.97840000000000