Year	Percent
2003-12-31	2.14
2004-12-31	2.2
2005-12-31	2.63
2006-12-31	3.84
2007-12-31	4.72
2008-12-31	3
2009-12-31	0.88
2010-12-31	1.24
2011-12-31	1.4
2012-12-31	0.22