Year	Percent
1992-01-01	64.9205000000000000
1993-01-01	34.2141000000000000
1994-01-01	19.0461000000000000
1995-01-01	13.2728000000000000
1996-01-01	12.8225000000000000
1997-01-01	10.6909000000000000
1998-01-01	10.1996000000000000
1999-01-01	9.4920200000000000
2000-01-01	4.6357900000000000
2001-01-01	3.1860800000000000
2002-01-01	2.8551500000000000
2003-01-01	2.3530400000000000
2004-01-01	2.1207599999999998
2005-01-01	2.3953000000000000
2006-01-01	1.4236700000000000
2007-01-01	2.9498900000000003
2008-01-01	2.9021200000000000
2009-01-01	5.4937500000000000
2010-01-01	4.6901699999999990
2011-01-01	2.7669300000000000
2012-01-01	4.3591300000000000
2013-01-01	1.2358600000000000
2014-01-01	1.3967200000000002
2015-01-01	2.5742900000000000
2016-01-01	2.9525000000000000