Year	Percent
2004-01-01	43.8819
2005-01-01	47.1795
2006-01-01	39.0535
2007-01-01	20.9122
2008-01-01	16.4041
2009-01-01	21.3312
2010-01-01	42.9299
2011-01-01	29.5158
2012-01-01	48.6004
2013-01-01	40.8048
2014-01-01	42.0813