Year	Percent
1996-01-01	28.571400000000000
1997-01-01	64.705900000000000
1998-01-01	63.636400000000000
1999-01-01	74.305600000000000
2000-01-01	56.142700000000000
2001-01-01	45.141999999999996
2002-01-01	40.091500000000000
2003-01-01	37.461200000000000
2004-01-01	38.196200000000000
2005-01-01	52.796800000000000
2006-01-01	51.762100000000000
2007-01-01	47.836000000000006
2008-01-01	39.213300000000000
2009-01-01	37.061800000000000
2010-01-01	37.874100000000000
2011-01-01	41.228000000000000
2012-01-01	48.696900000000000
2013-01-01	55.211200000000000
2014-01-01	55.967400000000000