Year	Percent
1992-01-01	43.4169000000000000
1993-01-01	21.3165000000000000
1994-01-01	3.5484699999999996
1995-01-01	5.5727100000000000
1996-01-01	6.2428500000000000
1997-01-01	6.3278200000000000
1998-01-01	7.6236600000000010
1999-01-01	9.4746700000000000
2000-01-01	10.4886000000000000
2001-01-01	10.1849000000000000
2002-01-01	8.9350700000000000
2003-01-01	7.7676000000000000
2004-01-01	7.8809000000000000
2005-01-01	8.8388200000000000
2006-01-01	9.5342300000000000
2007-01-01	11.9403000000000000
2008-01-01	17.0657000000000000
2009-01-01	25.0763000000000000
2010-01-01	28.3233000000000000
2011-01-01	34.0996000000000000
2012-01-01	38.6706000000000000
2013-01-01	43.9599000000000000
2014-01-01	47.5759000000000000
2015-01-01	49.8548000000000000
2016-01-01	51.6924000000000000