Year	Percent
1996-01-01	18.3619000000000000
1997-01-01	12.4177000000000000
1998-01-01	11.7085000000000000
1999-01-01	5.6713700000000000
2000-01-01	8.9034900000000000
2001-01-01	9.2885100000000000
2002-01-01	9.4136400000000000
2003-01-01	10.0178000000000000
2004-01-01	7.6418600000000000
2005-01-01	7.0179000000000000
2006-01-01	6.8268699999999995
2007-01-01	6.9555899999999990
2008-01-01	5.6095800000000000
2009-01-01	10.0391000000000000
2010-01-01	6.5466000000000000
2011-01-01	6.9983000000000000
2012-01-01	6.1421100000000000
2013-01-01	5.4105099999999995
2014-01-01	4.9831300000000000
2015-01-01	4.5867800000000000
2016-01-01	3.4848800000000004