Year	Percent
1995-01-01	13.7062
1996-01-01	12.5032
1997-01-01	13.2918
1998-01-01	16.9790
1999-01-01	15.5638
2000-01-01	16.5361
2001-01-01	20.7126
2002-01-01	23.5206
2003-01-01	26.6912
2004-01-01	28.4099
2005-01-01	27.0571
2006-01-01	34.6167
2007-01-01	37.4034
2008-01-01	32.4769
2009-01-01	34.7814
2010-01-01	33.8853
2011-01-01	35.3911
2012-01-01	34.3374
2013-01-01	34.7177
2014-01-01	35.5918
2015-01-01	37.8848
2016-01-01	36.0115