Year	Percent
1995-01-01	11.8375000000000000
1996-01-01	9.4063200000000000
1997-01-01	5.9472200000000000
1998-01-01	5.0725100000000000
1999-01-01	5.1611400000000005
2000-01-01	4.2453100000000000
2001-01-01	4.2115500000000000
2002-01-01	4.6389500000000000
2003-01-01	4.9749500000000000
2004-01-01	6.4575400000000000
2005-01-01	8.3233300000000000
2006-01-01	9.8000800000000000
2007-01-01	12.2297000000000000
2008-01-01	13.7679999999999990
2009-01-01	14.0598000000000000
2010-01-01	13.5635000000000000
2011-01-01	12.3474000000000000
2012-01-01	13.3706000000000000
2013-01-01	15.2458000000000000
2014-01-01	18.6632000000000000
2015-01-01	22.1376000000000000
2016-01-01	22.0498000000000000