Year	Percent
1993-01-01	19.8000000000000000
1994-01-01	19.8000000000000000
1995-01-01	59.7517000000000000
1996-01-01	43.1600000000000000
1997-01-01	45.6817000000000000
1998-01-01	14.7567000000000000
1999-01-01	20.5883000000000000
2000-01-01	20.1527000000000000
2001-01-01	23.0500000000000000
2002-01-01	22.2967000000000000
2003-01-01	17.8867000000000000
2004-01-01	17.3233000000000000
2005-01-01	17.5708000000000000
2006-01-01	13.9246000000000000
2007-01-01	8.3683300000000000
2008-01-01	9.1916700000000000
2009-01-01	8.3848399999999990
2010-01-01	8.2098000000000000
2011-01-01	6.1352300000000000
2012-01-01	6.8400300000000005
2013-01-01	6.4363400000000000
2014-01-01	6.7104700000000000
2015-01-01	6.5839700000000000
2016-01-01	6.4698699999999990