Year	Percent
1996-01-01	1.3895400000000000
1997-01-01	3.9063100000000000
1998-01-01	5.4382199999999990
1999-01-01	5.3345900000000000
2000-01-01	6.0175900000000000
2001-01-01	7.4802800000000005
2002-01-01	7.6388000000000000
2003-01-01	8.5668899999999990
2004-01-01	10.4677000000000000
2005-01-01	12.8220000000000010
2006-01-01	13.2258000000000000
2007-01-01	10.5627000000000000
2008-01-01	7.6868800000000000
2009-01-01	7.6868800000000000
2010-01-01	6.2530900000000000
2011-01-01	4.2794000000000000
2012-01-01	3.7287300000000000