Annual Percent
1971-01-01 31.647700000000000
1972-01-01 29.525300000000000
1973-01-01 30.230400000000000
1974-01-01 29.020500000000000
1975-01-01 26.945999999999998
1976-01-01 24.594300000000000
1977-01-01 24.095500000000000
1978-01-01 23.205400000000000
1979-01-01 20.274000000000000
1980-01-01 22.301600000000000
1981-01-01 25.160200000000000
1982-01-01 23.054400000000000
1983-01-01 22.776600000000000
1984-01-01 23.569400000000000
1985-01-01 23.576100000000000
1986-01-01 26.191999999999997
1987-01-01 27.185700000000000
1988-01-01 29.276000000000000
1989-01-01 31.456000000000000
1990-01-01 32.361900000000000
1991-01-01 35.190200000000000
1992-01-01 37.702300000000000
1993-01-01 41.071100000000000
1994-01-01 50.127500000000000
1995-01-01 59.476500000000000
1996-01-01 65.805300000000000
1997-01-01 67.131000000000000
1998-01-01 69.223400000000000
1999-01-01 77.760200000000000
2000-01-01 81.119500000000000
2001-01-01 86.598300000000000
2002-01-01 90.315800000000000
2003-01-01 97.433400000000000
2004-01-01 84.171000000000000
2005-01-01 80.115000000000000
2006-01-01 74.801300000000000
2007-01-01 59.503000000000000
2008-01-01 50.828300000000000
2009-01-01 50.072900000000000
2010-01-01 53.742900000000000
2011-01-01 53.943400000000000
2012-01-01 47.868600000000000
2013-01-01 48.234300000000000
2014-01-01 57.098200000000000
2015-01-01 61.887300000000000
2016-01-01 62.556500000000000