Year	Percent
1996-01-01	26.1209
1997-01-01	38.0333
1998-01-01	42.0983
1999-01-01	77.0763
2000-01-01	40.5842
2001-01-01	43.1740
2002-01-01	44.0182
2003-01-01	63.9359
2004-01-01	65.2818
2005-01-01	56.6942
2006-01-01	44.0864
2007-01-01	44.9896
2008-01-01	29.1761
2009-01-01	32.5846
2010-01-01	34.7132
2011-01-01	34.8623
2012-01-01	32.6476
2013-01-01	32.0983
2014-01-01	32.4078