Year	Percent
1994-01-01	33.4364000000000000
1995-01-01	3.6302199999999996
1996-01-01	3.6521400000000000
1997-01-01	1.0843000000000000
1998-01-01	0.8211129999999999
1999-01-01	0.7368060000000001
2000-01-01	3.1755900000000000
2001-01-01	3.3701300000000000
2002-01-01	3.5122500000000000
2003-01-01	2.7242900000000003
2004-01-01	2.8616099999999998
2005-01-01	2.6169800000000000
2006-01-01	4.1837900000000000
2007-01-01	3.5694199999999996
2008-01-01	2.2986800000000000
2009-01-01	3.2584500000000000
2010-01-01	4.2288300000000000
2011-01-01	3.7293700000000000
2012-01-01	6.9552200000000000
2013-01-01	7.9496800000000000
2014-01-01	6.5958300000000000
2015-01-01	7.1047300000000000
2016-01-01	6.0084500000000000