Year	Percent
2000-01-01	1.187
2001-01-01	7.350
2002-01-01	8.090
2003-01-01	11.500
2004-01-01	9.820
2005-01-01	10.180
2006-01-01	12.390
2007-01-01	15.720
2008-01-01	13.940
2009-01-01	17.350
2010-01-01	17.320
2011-01-01	16.960
2012-01-01	18.810
2013-01-01	19.900
2014-01-01	24.690
2015-01-01	25.420