Year	Percent
1996-01-01	1.8549900000000001
1997-01-01	2.9160200000000000
1998-01-01	5.3902199999999990
1999-01-01	6.3507400000000000
2000-01-01	8.4259200000000000
2001-01-01	8.7202000000000000
2002-01-01	9.2240200000000000
2003-01-01	8.8687800000000010
2004-01-01	7.6129500000000000
2005-01-01	4.6393200000000000
2006-01-01	4.7507800000000010
2007-01-01	7.8677300000000000
2008-01-01	9.1775300000000000
2009-01-01	15.6079999999999990
2010-01-01	16.5243000000000000
2011-01-01	14.6990000000000020
2012-01-01	15.7411000000000000
2013-01-01	23.4250000000000000
2014-01-01	35.4231000000000000
2015-01-01	36.4628000000000000
2016-01-01	33.7130000000000000