Year	Percent
1995-01-01	3.6006199999999997
1996-01-01	1.9087500000000000
1997-01-01	3.0121700000000002
1998-01-01	5.4959400000000000
1999-01-01	6.5888100000000005
2000-01-01	8.7404500000000000
2001-01-01	8.9339700000000000
2002-01-01	9.4298100000000000
2003-01-01	8.9873000000000000
2004-01-01	7.6848899999999990
2005-01-01	4.6743900000000000
2006-01-01	4.8019900000000000
2007-01-01	8.1077100000000000
2008-01-01	9.1383600000000000
2009-01-01	15.6832000000000000
2010-01-01	16.6140000000000000
2011-01-01	14.8077000000000000
2012-01-01	15.8696000000000000
2013-01-01	23.3622000000000000
2014-01-01	35.3071000000000000
2015-01-01	36.3713000000000000
2016-01-01	33.8190000000000000