Year	Percent
1996-01-01	40.4686
1997-01-01	38.3044
1998-01-01	33.8802
1999-01-01	38.4024
2000-01-01	36.7457
2001-01-01	36.7193
2002-01-01	35.8221
2003-01-01	35.7367
2004-01-01	31.9699
2005-01-01	24.4816
2006-01-01	31.7748
2007-01-01	32.5389
2008-01-01	35.8836
2009-01-01	30.9379
2010-01-01	30.9471
2011-01-01	32.8330
2012-01-01	32.8386
2013-01-01	32.8321
2014-01-01	31.8860