Year	Percent
1994-01-01	2.1515900000000000
1995-01-01	1.6892200000000002
1996-01-01	1.1524900000000000
1997-01-01	1.8603100000000000
1998-01-01	1.8496599999999999
1999-01-01	1.9382400000000002
2000-01-01	1.4292500000000000
2001-01-01	1.2588700000000002
2002-01-01	1.3787100000000000
2003-01-01	1.6046700000000000
2004-01-01	3.8819400000000000
2005-01-01	3.9665199999999996
2006-01-01	4.2859099999999990
2007-01-01	4.8030700000000000
2008-01-01	5.8913300000000000
2009-01-01	9.9265400000000000
2010-01-01	11.9675000000000000
2011-01-01	10.4627000000000000
2012-01-01	15.9477000000000000
2013-01-01	16.9521000000000000
2014-01-01	13.4756000000000000
2015-01-01	12.9341000000000000
2016-01-01	11.5584000000000000