Year	Percent
1990-01-01	0.051275000000000000
1991-01-01	0.056774000000000000
1992-01-01	0.056655000000000000
1993-01-01	0.058147000000000004
1994-01-01	0.047028000000000000
1995-01-01	0.042408000000000000
1996-01-01	0.044556000000000000
1997-01-01	0.051611000000000004
1998-01-01	0.059095000000000000
1999-01-01	0.066643000000000000
2000-01-01	0.060861000000000000
2001-01-01	0.062258000000000000
2002-01-01	0.065495000000000000
2003-01-01	0.077640000000000000
2004-01-01	0.085473000000000010
2005-01-01	0.085937000000000000
2006-01-01	0.091383000000000000
2007-01-01	0.095058000000000000
2008-01-01	0.105492000000000000
2009-01-01	0.119505000000000000
2010-01-01	0.129440000000000000
2011-01-01	0.130905000000000000
2012-01-01	0.143451000000000000
2013-01-01	0.157994000000000000
2014-01-01	0.143157999999999980
2015-01-01	0.131764000000000020