Year	Percent
1990-01-01	0.021084000000000002
1991-01-01	0.389436000000000000
1992-01-01	0.028501000000000000
1993-01-01	0.040693000000000000
1994-01-01	0.048533000000000000
1995-01-01	0.055395000000000010
1996-01-01	0.051898000000000000
1997-01-01	0.060711000000000000
1998-01-01	0.060612000000000000
1999-01-01	0.071969000000000000
2000-01-01	0.064178000000000000
2001-01-01	0.066687000000000000
2002-01-01	0.069564000000000000
2003-01-01	0.058741999999999996
2004-01-01	0.057879999999999994
2005-01-01	0.058159000000000000
2006-01-01	0.071011000000000000
2007-01-01	0.057050000000000000
2008-01-01	0.069013999999999990
2009-01-01	0.084287000000000000
2010-01-01	0.089637000000000000
2011-01-01	0.116097000000000000
2012-01-01	0.134493000000000000
2013-01-01	0.152166000000000000
2014-01-01	0.153979000000000000
2015-01-01	0.177697000000000000