Year	Percent
1995-01-01	38.241300000000000
1996-01-01	40.164100000000000
1997-01-01	42.737800000000000
1998-01-01	49.389600000000000
1999-01-01	43.803700000000000
2000-01-01	50.726400000000000
2001-01-01	43.206400000000000
2002-01-01	55.541400000000000
2003-01-01	64.357000000000000
2004-01-01	66.000600000000000
2005-01-01	62.663999999999994
2006-01-01	62.705800000000000
2007-01-01	76.680300000000000
2008-01-01	67.753400000000000
2009-01-01	63.568200000000000
2010-01-01	68.175200000000000
2011-01-01	57.238100000000000
2012-01-01	62.034200000000000
2013-01-01	72.460700000000000
2014-01-01	56.670600000000000
2015-01-01	54.437800000000000
2016-01-01	59.341800000000000