Year	Percent
1993-01-01	2.1216500000000000
1994-01-01	3.8135100000000000
1995-01-01	3.9100099999999998
1996-01-01	5.4498000000000000
1997-01-01	6.4006099999999995
1998-01-01	6.2143600000000000
1999-01-01	6.2481100000000000
2000-01-01	8.1074899999999990
2001-01-01	9.4449200000000000
2002-01-01	11.2733000000000000
2003-01-01	12.2948000000000000
2004-01-01	13.1350000000000000
2005-01-01	13.3405000000000000
2006-01-01	15.1952000000000000
2007-01-01	20.4869000000000000
2008-01-01	24.7244000000000000
2009-01-01	26.3240000000000000
2010-01-01	31.3688000000000000
2011-01-01	32.0962000000000000
2012-01-01	36.3497000000000000
2013-01-01	44.2836000000000000
2014-01-01	52.0176000000000000
2015-01-01	58.8903000000000000
2016-01-01	64.0463000000000000