Year	Percent
2002-01-01	11.1265
2003-01-01	11.0117
2004-01-01	13.3335
2005-01-01	17.2745
2006-01-01	29.8893
2007-01-01	48.7504
2008-01-01	54.8474
2009-01-01	50.8555
2010-01-01	46.7904
2011-01-01	46.3996
2012-01-01	49.6578
2013-01-01	49.5765
2014-01-01	51.3418
2015-01-01	54.3949
2016-01-01	55.0043