Year	Percent
2005-01-01	8.25736443640930
2006-01-01	7.91947734591259
2007-01-01	7.36645695525419
2008-01-01	8.03894247376279
2009-01-01	9.99895466996527
2010-01-01	8.43106416319718
2011-01-01	7.38479557030631
2012-01-01	6.68690529094642
2013-01-01	6.18855973481728
2014-01-01	6.62302676813897
2015-01-01	6.46491435966027
2016-01-01	6.79779735362574
2017-01-01	7.00952543766430