Year	Percent
1992-01-01	0.2113650000000000
1993-01-01	0.1623260000000000
1994-01-01	0.4004000000000000
1995-01-01	0.6400750000000000
1996-01-01	2.0250800000000000
1997-01-01	9.0852500000000000
1998-01-01	23.3773000000000000
1999-01-01	30.1436000000000000
2000-01-01	26.0664000000000000
2001-01-01	16.2014000000000000
2002-01-01	9.7045000000000000
2003-01-01	9.7237700000000000
2004-01-01	11.7308000000000000
2005-01-01	16.3285000000000000
2006-01-01	22.4443000000000000
2007-01-01	29.7637000000000000
2008-01-01	25.2152000000000000
2009-01-01	19.6182000000000000
2010-01-01	20.4377000000000000
2011-01-01	15.4630000000000000
2012-01-01	9.9521199999999990
2013-01-01	8.1443500000000000
2014-01-01	6.2979000000000000
2015-01-01	5.4758100000000000
2016-01-01	6.0279300000000005
2017-01-01	6.6179300000000000