Year	Percent
1999-01-01	0.47674399999999995
2000-01-01	0.28834099999999996
2001-01-01	0.28188000000000000
2002-01-01	0.45551200000000000
2003-01-01	0.70268300000000000
2004-01-01	0.74592600000000000
2005-01-01	0.96520100000000000
2006-01-01	1.08323000000000000
2007-01-01	0.89388300000000000
2008-01-01	0.43966700000000003
2009-01-01	0.54545000000000000
2010-01-01	0.66385699999999990
2011-01-01	0.66762400000000000
2012-01-01	0.68905200000000000
2013-01-01	0.77384300000000010
2014-01-01	1.22496000000000000
2015-01-01	2.06782000000000000
2016-01-01	2.11793000000000000