Year	Percent
1996-01-01	82.76460000000000
1997-01-01	84.81810000000000
1998-01-01	82.85710000000000
1999-01-01	74.07410000000000
2000-01-01	50.00000000000000
2001-01-01	54.28570000000000
2002-01-01	49.05660000000000
2003-01-01	45.45450000000000
2004-01-01	36.36470000000000
2005-01-01	30.41040000000000
2006-01-01	32.08420000000000
2007-01-01	29.83820000000000
2008-01-01	35.16910000000000
2009-01-01	37.71000000000000
2010-01-01	59.63980000000000
2011-01-01	59.95590000000000
2012-01-01	53.63480000000000
2013-01-01	46.20060000000000
2014-01-01	83.03299999999999