Year	Percent
1995-01-01	0.058187
1996-01-01	5.137070
1997-01-01	5.923100
1998-01-01	7.451670
1999-01-01	9.430420
2000-01-01	13.782700
2001-01-01	16.358300
2002-01-01	19.411900
2003-01-01	24.434300
2004-01-01	26.994100
2005-01-01	30.621700
2006-01-01	34.499000
2007-01-01	33.883400
2008-01-01	31.182200
2009-01-01	24.862000
2010-01-01	30.160900
2011-01-01	25.845400
2012-01-01	27.268700
2013-01-01	27.444500
2014-01-01	26.003400
2015-01-01	23.647200
2016-01-01	21.546100
2017-01-01	20.171800