Year	Percent
1993-01-01	8.285260000000001
1994-01-01	9.291520000000000
1995-01-01	11.125800000000000
1996-01-01	11.482300000000000
1997-01-01	12.516100000000000
1998-01-01	13.534600000000000
1999-01-01	12.444100000000000
2000-01-01	13.316300000000000
2001-01-01	14.102800000000000
2002-01-01	15.574700000000000
2003-01-01	17.231600000000000
2004-01-01	17.769600000000000
2005-01-01	19.365800000000000
2006-01-01	21.747600000000000
2007-01-01	24.728300000000000
2008-01-01	25.944100000000000
2009-01-01	33.172200000000000
2010-01-01	33.708000000000000
2011-01-01	34.651600000000000
2012-01-01	35.576900000000000
2013-01-01	38.365900000000000
2014-01-01	41.340600000000000
2015-01-01	48.658300000000000
2016-01-01	50.414900000000000