Year	Percent
2002-01-01	92.592400000000000
2003-01-01	64.608300000000000
2004-01-01	61.912500000000000
2005-01-01	60.613700000000000
2006-01-01	59.895100000000000
2007-01-01	70.246300000000000
2008-01-01	72.194300000000000
2009-01-01	68.062500000000000
2010-01-01	64.885400000000000
2011-01-01	56.850100000000000
2012-01-01	55.048600000000000
2013-01-01	53.270000000000000
2014-01-01	54.870200000000000
2015-01-01	41.916000000000004
2016-01-01	40.184000000000000