Annual Percent
1973-01-01 6.7774500000000000
1974-01-01 4.8792599999999995
1975-01-01 6.9020600000000005
1976-01-01 7.6236100000000000
1977-01-01 12.2907000000000000
1978-01-01 16.6890000000000000
1979-01-01 20.7191000000000000
1980-01-01 30.5462000000000000
1981-01-01 40.9086000000000000
1982-01-01 57.5107000000000000
1983-01-01 61.1485000000000000
1984-01-01 60.2751000000000000
1985-01-01 58.1469000000000000
1986-01-01 52.4863000000000000
1987-01-01 46.6297000000000000
1988-01-01 40.6974000000000000
1989-01-01 40.1885000000000000
1990-01-01 41.4102000000000000
1991-01-01 38.0811000000000000
1992-01-01 38.1689000000000000
1993-01-01 41.9772000000000000
1994-01-01 43.3381000000000000
1995-01-01 43.1762000000000000
1996-01-01 48.2129000000000000
1997-01-01 51.0928000000000000
1998-01-01 54.7938000000000000
1999-01-01 58.1007000000000000
2000-01-01 58.4583000000000000
2001-01-01 61.6391000000000000
2002-01-01 63.1873000000000000
2003-01-01 62.6548000000000000
2004-01-01 59.6134000000000000
2005-01-01 60.7789000000000000
2006-01-01 59.3324000000000000
2007-01-01 63.3292000000000000
2008-01-01 74.5478000000000000
2009-01-01 74.5427000000000000
2010-01-01 65.4002000000000000
2011-01-01 66.7943000000000000
2012-01-01 71.5401000000000000
2013-01-01 74.9241000000000000
2014-01-01 77.8245000000000000
2015-01-01 80.6895000000000000
2016-01-01 82.4176000000000000