Year	Percent
2001-01-01	45.8874577200864
2002-01-01	45.9915106751284
2003-01-01	45.7333783135706
2004-01-01	45.2483345301807
2005-01-01	45.2241897818784
2006-01-01	45.8185836771966
2007-01-01	46.6759172884723
2008-01-01	46.8245204586184
2009-01-01	45.8445994926895
2010-01-01	45.3227985562665
2011-01-01	46.3012237941612
2012-01-01	46.6718591993193
2013-01-01	46.9384466442275
2014-01-01	47.4064777100686