Year	Percent
1999-01-01	0.24208200000000002
2000-01-01	0.18407000000000000
2001-01-01	0.21679000000000000
2002-01-01	0.29452200000000000
2003-01-01	0.50194100000000000
2004-01-01	1.17783000000000000
2005-01-01	1.54915000000000000
2006-01-01	3.63894000000000030
2007-01-01	9.33993999999999900
2008-01-01	4.77729000000000000
2009-01-01	8.01827000000000000
2010-01-01	7.48562000000000000
2011-01-01	5.95970000000000000
2012-01-01	8.10603000000000000
2013-01-01	9.48026000000000100
2014-01-01	10.09020000000000000
2015-01-01	11.17370000000000000
2016-01-01	12.53010000000000000