Year	Percent
1992-01-01	24.157800000000000
1993-01-01	21.989400000000000
1994-01-01	6.917660000000001
1995-01-01	6.431010000000000
1996-01-01	7.227110000000001
1997-01-01	8.520340000000000
1998-01-01	9.350080000000000
1999-01-01	9.087890000000000
2000-01-01	10.306100000000000
2001-01-01	12.442200000000000
2002-01-01	16.266700000000000
2003-01-01	21.530400000000000
2004-01-01	23.425700000000000
2005-01-01	27.212200000000000
2006-01-01	35.437100000000000
2007-01-01	44.656500000000000
2008-01-01	60.842100000000000
2009-01-01	80.973600000000000
2010-01-01	71.984500000000000
2011-01-01	65.312800000000000
2012-01-01	63.214400000000000
2013-01-01	65.821600000000000
2014-01-01	68.795000000000000
2015-01-01	64.935300000000000
2016-01-01	50.904200000000000