Year	Percent
1993-01-01	12.182400000000000
1994-01-01	14.434000000000001
1995-01-01	12.683600000000000
1996-01-01	10.993000000000000
1997-01-01	10.183100000000000
1998-01-01	11.450000000000000
1999-01-01	13.411300000000000
2000-01-01	15.234200000000000
2001-01-01	17.891400000000000
2002-01-01	19.804300000000000
2003-01-01	20.794700000000000
2004-01-01	23.889300000000000
2005-01-01	28.020100000000000
2006-01-01	31.618100000000000
2007-01-01	32.265900000000000
2008-01-01	32.333900000000000
2009-01-01	39.796600000000000
2010-01-01	40.500500000000000
2011-01-01	37.403400000000000
2012-01-01	36.467600000000000
2013-01-01	36.656600000000000
2014-01-01	38.736100000000000
2015-01-01	41.664800000000000
2016-01-01	43.359100000000000