Year	Percent
1995-01-01	18.962358470
1996-01-01	22.543252940
1997-01-01	35.822582240
1998-01-01	18.940027240
1999-01-01	17.732288360
2000-01-01	32.171882630
2001-01-01	27.970500950
2002-01-01	17.958215710
2003-01-01	16.933074950
2004-01-01	17.188201900
2005-01-01	18.097616200
2006-01-01	14.870298390
2007-01-01	13.899990080
2008-01-01	4.493243694
2009-01-01	6.341335773
2010-01-01	4.469789982
2011-01-01	2.964785814
2012-01-01	4.132660389
2013-01-01	5.984632969