Year	Percent
2004-01-01	48.9405
2005-01-01	47.8251
2006-01-01	42.2007
2007-01-01	60.3937
2008-01-01	59.0351
2009-01-01	67.4371
2010-01-01	54.3996
2011-01-01	54.6056
2012-01-01	43.6849
2013-01-01	43.6849
2014-01-01	47.9341
2015-01-01	43.3826
2016-01-01	41.9070