Year	Percent
1995-01-01	22.9915
1996-01-01	32.2648
1997-01-01	23.7549
1998-01-01	17.4295
1999-01-01	19.5756
2000-01-01	35.9874
2001-01-01	45.1840
2002-01-01	54.3727
2003-01-01	50.0779
2004-01-01	59.0297
2005-01-01	76.1203
2006-01-01	75.2119
2007-01-01	91.6006
2008-01-01	97.4792
2009-01-01	59.9432
2010-01-01	46.5232
2011-01-01	59.1159
2012-01-01	44.2111
2013-01-01	48.9472
2014-01-01	40.1212
2015-01-01	33.1676
2016-01-01	32.3616