Year	Percent
1992-01-01	53.1542000000000000
1993-01-01	25.6071000000000000
1994-01-01	11.4600000000000000
1995-01-01	6.8646699999999990
1996-01-01	6.7687200000000000
1997-01-01	7.6268400000000000
1998-01-01	2.8004500000000000
1999-01-01	2.1612800000000000
2000-01-01	1.5467799999999998
2001-01-01	2.0312000000000000
2002-01-01	2.7059900000000003
2003-01-01	3.0443599999999997
2004-01-01	2.5806200000000000
2005-01-01	2.3988400000000003
2006-01-01	2.4647500000000000
2007-01-01	2.7126300000000000
2008-01-01	5.6917700000000000
2009-01-01	8.0206800000000000
2010-01-01	11.4321000000000000
2011-01-01	10.5138000000000000
2012-01-01	10.3391000000000000
2013-01-01	11.7691000000000000
2014-01-01	12.9687000000000000
2015-01-01	9.8220000000000010
2016-01-01	16.4315000000000000