Year	Percent
1996-01-01	13.0163
1997-01-01	14.4273
1998-01-01	17.3913
1999-01-01	13.5815
2000-01-01	15.6034
2001-01-01	16.7188
2002-01-01	15.9011
2003-01-01	22.4236
2004-01-01	16.8933
2005-01-01	10.5736
2006-01-01	27.8783
2007-01-01	20.1691
2008-01-01	15.3366
2009-01-01	13.7537
2010-01-01	11.1186
2011-01-01	14.6302
2012-01-01	20.5388
2013-01-01	12.7051
2014-01-01	16.6962
2015-01-01	17.9943
2016-01-01	10.0753