Year	Percent
1994-01-01	13.3377
1995-01-01	15.3370
1996-01-01	20.7628
1997-01-01	26.3877
1998-01-01	30.2886
1999-01-01	30.8593
2000-01-01	32.4011
2001-01-01	42.2301
2002-01-01	48.2404
2003-01-01	48.3936
2004-01-01	49.4077
2005-01-01	50.6198
2006-01-01	53.2951
2007-01-01	57.0012
2008-01-01	59.7191
2009-01-01	64.0952
2010-01-01	68.3833
2011-01-01	72.3440
2012-01-01	69.1654
2013-01-01	64.2140
2014-01-01	63.8222
2015-01-01	63.8696
2016-01-01	63.8679