Year	Percent
1996-01-01	43.145000000000000
1997-01-01	45.756200000000000
1998-01-01	52.928300000000000
1999-01-01	55.369800000000000
2000-01-01	58.640000000000000
2001-01-01	43.231300000000000
2002-01-01	37.935500000000000
2003-01-01	41.729700000000000
2004-01-01	33.282100000000000
2005-01-01	67.060800000000000
2006-01-01	54.895100000000000
2007-01-01	52.359300000000000
2008-01-01	32.438300000000000
2009-01-01	34.720100000000000
2010-01-01	34.045000000000000
2011-01-01	52.026900000000000
2012-01-01	56.731100000000000
2013-01-01	29.099700000000000
2014-01-01	29.191999999999997
2015-01-01	53.158900000000000
2016-01-01	28.690000000000000