Year	Percent
2000-01-01	0.31
2001-01-01	0.61
2002-01-01	0.98
2003-01-01	1.40
2004-01-01	1.93
2005-01-01	2.38
2006-01-01	2.85
2007-01-01	3.65
2008-01-01	3.16
2009-01-01	4.32
2010-01-01	5.33
2011-01-01	5.66
2012-01-01	6.93
2013-01-01	8.29
2014-01-01	9.76
2015-01-01	10.54
2016-01-01	11.61