Year	Percent
1999-01-01	0.006548000000000000
2000-01-01	0.003414000000000000
2001-01-01	0.007183000000000000
2002-01-01	0.012027000000000000
2003-01-01	0.019103000000000000
2004-01-01	0.020852000000000002
2005-01-01	0.005058000000000000
2006-01-01	0.002097000000000000
2007-01-01	0.007837000000000000
2008-01-01	0.002497000000000000
2009-01-01	0.002529000000000000
2010-01-01	0.003440000000000000
2011-01-01	0.007020000000000000
2012-01-01	0.027554000000000002
2013-01-01	0.075431000000000000
2014-01-01	0.129973000000000000
2015-01-01	0.157917000000000000