Year	Percent
2001-01-01	11.6000000000000000
2002-01-01	7.9000000000000000
2003-01-01	2.4000000000000000
2004-01-01	2.0000000000000000
2005-01-01	3.8000000000000000
2006-01-01	0.8000000000000000
2007-01-01	0.8000000000000000
2008-01-01	4.1000000000000000
2009-01-01	6.3000000000000000
2010-01-01	5.9196800000000005
2011-01-01	4.5260000000000000
2012-01-01	3.6802500000000000
2013-01-01	3.0317200000000000
2014-01-01	3.0270599999999996
2015-01-01	2.7114500000000000
2016-01-01	3.4469800000000004