Year	Percent
2005-01-01	43.5871702890246
2006-01-01	44.9244578731239
2007-01-01	45.4438495874507
2008-01-01	45.2359088182633
2009-01-01	45.8339300287433
2010-01-01	45.6400576974215
2011-01-01	46.1611363177935
2012-01-01	47.2656126715376
2013-01-01	47.4002302701099
2014-01-01	46.5749199987369
2015-01-01	46.8458965408849
2016-01-01	46.9828451883158
2017-01-01	46.6719017323488