Annual Percent
1979-01-01 46.4339072000000
1980-01-01 47.8956334583333
1981-01-01 48.2235916083333
1982-01-01 47.6265350750000
1983-01-01 46.7627670333333
1984-01-01 48.0113318333333
1985-01-01 49.5509824333333
1986-01-01 51.8386150250000
1987-01-01 52.6517529916667
1988-01-01 54.1761064000000
1989-01-01 56.4157947916667
1990-01-01 57.3747004583333
1991-01-01 55.9626325500000
1992-01-01 55.5990228333333
1993-01-01 55.4404125916667
1994-01-01 56.8590596500000
1995-01-01 58.7906149500000
1996-01-01 58.9595601000000
1997-01-01 58.8420445500000
1998-01-01 59.4029779583333
1999-01-01 59.8520385333333
2000-01-01 61.2659035333333
2001-01-01 61.6527082333333
2002-01-01 62.0378693666667
2003-01-01 62.9792160000000
2004-01-01 63.0051731500000
2005-01-01 64.5948027416667
2006-01-01 65.4451223833333
2007-01-01 66.0605538416667
2008-01-01 66.7180796000000
2009-01-01 66.3023551166667
2010-01-01 66.1460692916667
2011-01-01 66.6510925083333
2012-01-01 66.5697122916667
2013-01-01 66.4196866500000
2014-01-01 66.1024632250000
2015-01-01 66.8374341750000
2016-01-01 67.3951521750000
2017-01-01 68.1482963583334