Year	Percent
2005-01-01	48.0662103821152
2006-01-01	46.8326135899643
2007-01-01	45.4348530322684
2008-01-01	42.6510813589929
2009-01-01	41.6395744605443
2010-01-01	36.8351874392434
2011-01-01	34.5134924304776
2012-01-01	34.2197648462039
2013-01-01	33.5413384206941
2014-01-01	32.7104326615506
2015-01-01	32.4536477038269
2016-01-01	31.8463823314402
2017-01-01	31.2528966889172