Year	Percent
1995-01-01	4.8752400000000000
1996-01-01	2.4048400000000000
1997-01-01	0.9804410000000000
1998-01-01	0.6801570000000000
1999-01-01	1.8353599999999999
2000-01-01	5.6120800000000010
2001-01-01	6.5228800000000010
2002-01-01	7.1716100000000000
2003-01-01	7.6941300000000000
2004-01-01	9.4484200000000000
2005-01-01	17.4068000000000000
2006-01-01	18.3344000000000000
2007-01-01	22.6215000000000000
2008-01-01	21.3073000000000000
2009-01-01	23.5101000000000000
2010-01-01	18.2460000000000000
2011-01-01	15.7819000000000000
2012-01-01	15.8169000000000000
2013-01-01	16.1333000000000000