Year	Percent
1990-01-01	1.5622000000000000
1991-01-01	1.4598300000000000
1992-01-01	1.5879000000000000
1993-01-01	2.1765700000000000
1994-01-01	2.9984200000000000
1995-01-01	2.1768500000000000
1996-01-01	2.2763400000000003
1997-01-01	2.8693200000000000
1998-01-01	4.0820900000000000
1999-01-01	4.0254000000000000
2000-01-01	4.5247300000000000
2001-01-01	3.0518600000000000
2002-01-01	1.6136600000000000
2003-01-01	1.2502500000000000
2004-01-01	0.8739230000000000
2005-01-01	0.9225020000000000
2006-01-01	1.5881600000000000
2007-01-01	2.5009099999999997
2008-01-01	3.7391400000000004
2009-01-01	5.0615900000000000
2010-01-01	5.6763000000000000
2011-01-01	7.7533800000000000
2012-01-01	11.8017000000000000
2013-01-01	12.7012000000000000
2014-01-01	12.1196000000000000
2015-01-01	10.0475000000000000
2016-01-01	7.8316399999999990