Year	Percent
1999-01-01	32.4790000000000000
2000-01-01	21.6337000000000000
2001-01-01	16.6710000000000000
2002-01-01	14.2842000000000000
2003-01-01	12.5694000000000000
2004-01-01	11.1389000000000000
2005-01-01	11.3781000000000000
2006-01-01	8.5028300000000000
2007-01-01	7.7955300000000000
2008-01-01	6.4298800000000010
2009-01-01	1.5665600000000000
2010-01-01	1.3928700000000000
2011-01-01	1.2112399999999999
2012-01-01	1.0049600000000000
2013-01-01	0.9198200000000001
2014-01-01	2.8022099999999996
2015-01-01	3.7056100000000000
2016-01-01	6.6073800000000000