Year	Percent
2002-01-01	10.677999999999999
2003-01-01	12.132200000000000
2004-01-01	17.966900000000000
2005-01-01	18.988000000000000
2006-01-01	28.741500000000000
2007-01-01	55.984900000000000
2008-01-01	80.590100000000000
2009-01-01	86.854000000000000
2010-01-01	74.349200000000000
2011-01-01	66.109900000000000
2012-01-01	63.843000000000000
2013-01-01	60.752600000000000
2014-01-01	59.943600000000000
2015-01-01	59.597600000000000
2016-01-01	59.392700000000000