Year	Percent
2000-01-01	47.2792607461897
2001-01-01	47.5435873727412
2002-01-01	47.6990722735707
2003-01-01	47.9534485581601
2004-01-01	48.2345112276406
2005-01-01	48.4590525275071
2006-01-01	48.6092841472257
2007-01-01	48.6414850934945
2008-01-01	48.6922702001501
2009-01-01	47.4785815120876
2010-01-01	47.2201141722745
2011-01-01	47.0904920017079
2012-01-01	47.2821385418900
2013-01-01	47.5523474524604
2014-01-01	48.3192926781911