Year	Percent
1996-01-01	54.3272
1997-01-01	51.2111
1998-01-01	44.1139
1999-01-01	50.0177
2000-01-01	70.5856
2001-01-01	75.8594
2002-01-01	67.1589
2003-01-01	70.5975
2004-01-01	72.1045
2005-01-01	83.9961
2006-01-01	86.5279
2007-01-01	96.5269
2008-01-01	79.7788
2009-01-01	81.7826
2010-01-01	84.6191
2011-01-01	85.0915
2012-01-01	84.3488
2013-01-01	84.2058
2014-01-01	84.9395
2015-01-01	94.6671
2016-01-01	93.3617