Year	Percent
1994-01-01	1.2500400000000000
1995-01-01	1.1852500000000000
1996-01-01	1.9804500000000000
1997-01-01	1.8871900000000001
1998-01-01	6.5842199999999990
1999-01-01	7.8152000000000000
2000-01-01	10.2491000000000000
2001-01-01	9.1228800000000000
2002-01-01	8.8274800000000000
2003-01-01	7.4446100000000010
2004-01-01	7.7008399999999995
2005-01-01	4.4515300000000000
2006-01-01	5.7722200000000000
2007-01-01	6.6508899999999995
2008-01-01	5.4403400000000000
2009-01-01	9.5912500000000000
2010-01-01	10.3340000000000010
2011-01-01	11.8240000000000020
2012-01-01	16.4686000000000000
2013-01-01	22.2008000000000000
2014-01-01	18.9345000000000000
2015-01-01	18.9163000000000000
2016-01-01	16.2963000000000000