Year	Percent
1996-01-01	71.1826
1997-01-01	68.0095
1998-01-01	68.8768
1999-01-01	70.4792
2000-01-01	69.3744
2001-01-01	55.9896
2002-01-01	45.6583
2003-01-01	45.6044
2004-01-01	80.9018
2005-01-01	68.6971
2006-01-01	60.0305
2007-01-01	58.1372
2008-01-01	59.6383
2009-01-01	54.8721
2010-01-01	58.7488
2011-01-01	62.2863
2012-01-01	60.1500
2013-01-01	88.8954
2014-01-01	71.8183