Year	Percent
1992-01-01	17.52410000000000000
1993-01-01	11.10470000000000000
1994-01-01	4.18877000000000000
1995-01-01	1.95745000000000000
1996-01-01	2.92977000000000000
1997-01-01	2.90585999999999970
1998-01-01	1.82972999999999990
1999-01-01	1.87788000000000000
2000-01-01	1.39673000000000000
2001-01-01	0.91650499999999990
2002-01-01	0.55205799999999990
2003-01-01	0.18378200000000000
2004-01-01	0.26660300000000003
2005-01-01	0.36794400000000000
2006-01-01	0.28076700000000000
2007-01-01	0.22623300000000000
2008-01-01	0.28529099999999996
2009-01-01	0.87975200000000010
2010-01-01	1.17513000000000000
2011-01-01	1.15975000000000000
2012-01-01	1.26888000000000000
2013-01-01	1.34881000000000000
2014-01-01	1.53946000000000000
2015-01-01	1.95595000000000000
2016-01-01	2.50963000000000000