Year	Percent
1993-01-01	44.5108
1994-01-01	61.7582
1995-01-01	66.7089
1996-01-01	84.4165
1997-01-01	81.4278
1998-01-01	82.2212
1999-01-01	95.7140
2000-01-01	103.7060
2001-01-01	105.7250
2002-01-01	87.3281
2003-01-01	88.9785
2004-01-01	81.1519
2005-01-01	88.3761
2006-01-01	89.3569
2007-01-01	82.4211
2008-01-01	87.0800
2009-01-01	81.2014
2010-01-01	80.2216
2011-01-01	80.1412
2012-01-01	72.2474
2013-01-01	80.1693
2014-01-01	86.7301
2015-01-01	88.2695
2016-01-01	89.9535