Year	Percent
1991-01-01	0.08294000000000000
1992-01-01	0.23324299999999998
1993-01-01	1.07622000000000020
1994-01-01	2.89312999999999980
1995-01-01	2.84770999999999970
1996-01-01	2.48821000000000000
1997-01-01	3.76611000000000000
1998-01-01	4.63490000000000000
1999-01-01	5.44745000000000000
2000-01-01	8.79906000000000000
2001-01-01	8.48818000000000000
2002-01-01	3.40886000000000000
2003-01-01	2.55895000000000000
2004-01-01	5.09455999999999950
2005-01-01	7.57936000000000000
2006-01-01	11.69540000000000000
2007-01-01	17.41680000000000000
2008-01-01	14.72850000000000000
2009-01-01	11.06020000000000000
2010-01-01	13.37310000000000000
2011-01-01	13.67040000000000000
2012-01-01	12.75840000000000000
2013-01-01	12.86330000000000000
2014-01-01	12.00420000000000000
2015-01-01	10.60150000000000000
2016-01-01	10.12060000000000000
2017-01-01	10.99420000000000000