Year	Percent
1995-01-01	55.5014
1996-01-01	51.7325
1997-01-01	58.6864
1998-01-01	30.7627
1999-01-01	27.5940
2000-01-01	29.5528
2001-01-01	10.4560
2002-01-01	17.7450
2003-01-01	20.3230
2004-01-01	20.9128
2005-01-01	29.4450
2006-01-01	39.5390
2007-01-01	30.9471
2008-01-01	11.9849
2009-01-01	10.4132
2010-01-01	11.5662
2011-01-01	16.2902
2012-01-01	12.9092
2013-01-01	10.7756
2014-01-01	10.4645
2015-01-01	13.4275
2016-01-01	15.2008