Year	Percent
1996-01-01	35.297000000000000
1997-01-01	29.509200000000000
1998-01-01	29.530000000000000
1999-01-01	34.736800000000000
2000-01-01	33.279000000000000
2001-01-01	34.293000000000000
2002-01-01	35.249100000000000
2003-01-01	39.498900000000000
2004-01-01	51.113600000000000
2005-01-01	58.949500000000000
2006-01-01	41.448700000000000
2007-01-01	44.568000000000005
2008-01-01	34.065000000000000
2009-01-01	33.387000000000000
2010-01-01	32.468600000000000
2011-01-01	35.369500000000000
2012-01-01	31.243400000000000
2013-01-01	33.019600000000000
2014-01-01	32.491300000000000