Year	Percent
1991-01-01	0.723783000000000
1992-01-01	0.756268000000000
1993-01-01	1.045240000000000
1994-01-01	4.236110000000000
1995-01-01	4.742640000000000
1996-01-01	7.439120000000000
1997-01-01	9.740089999999999
1998-01-01	13.534900000000000
1999-01-01	12.947100000000000
2000-01-01	14.461100000000000
2001-01-01	13.344500000000000
2002-01-01	16.054400000000000
2003-01-01	20.168500000000000
2004-01-01	17.079900000000000
2005-01-01	14.946600000000000
2006-01-01	17.835600000000000
2007-01-01	19.574400000000000
2008-01-01	16.181800000000000
2009-01-01	22.092700000000000
2010-01-01	22.619100000000000
2011-01-01	22.891100000000000
2012-01-01	14.370300000000000
2013-01-01	11.520700000000000
2014-01-01	14.698900000000000
2015-01-01	15.727300000000000
2016-01-01	12.053500000000000