Annual Percent
1973-01-01 11.1564000000000000
1974-01-01 12.1474000000000000
1975-01-01 9.7356500000000000
1976-01-01 9.0844000000000000
1977-01-01 6.1687400000000010
1978-01-01 5.5131800000000000
1979-01-01 3.9513300000000005
1980-01-01 4.0193100000000000
1981-01-01 5.1479200000000000
1982-01-01 5.1468099999999990
1983-01-01 4.3704100000000000
1984-01-01 2.6406000000000000
1985-01-01 2.6945600000000000
1986-01-01 3.5686300000000000
1987-01-01 2.9969000000000000
1988-01-01 2.1635000000000000
1989-01-01 2.2278200000000000
1990-01-01 3.4988000000000000
1991-01-01 3.4857699999999996
1992-01-01 4.2675700000000000
1993-01-01 4.2846600000000000
1994-01-01 5.2374900000000000
1995-01-01 5.5334300000000000
1996-01-01 6.3854600000000000
1997-01-01 7.2620600000000010
1998-01-01 7.7741899999999990
1999-01-01 8.7346899999999990
2000-01-01 9.3903600000000010
2001-01-01 10.9290000000000000
2002-01-01 12.5497000000000000
2003-01-01 13.9103000000000000
2004-01-01 13.2561000000000000
2005-01-01 13.1745000000000000
2006-01-01 13.1494000000000000
2007-01-01 13.6155000000000000
2008-01-01 14.3121000000000000
2009-01-01 14.4763000000000000
2010-01-01 15.5095000000000000
2011-01-01 16.5222000000000000
2012-01-01 16.8706000000000000
2013-01-01 17.7462000000000000
2014-01-01 18.3804000000000000
2015-01-01 18.3017000000000000
2016-01-01 18.6909000000000000