Year	Percent
1990-01-01	1.69735999999999980
1991-01-01	1.65778000000000000
1992-01-01	1.82847999999999990
1993-01-01	1.38242000000000000
1994-01-01	1.15190000000000000
1995-01-01	0.49272200000000005
1996-01-01	0.33550599999999997
1997-01-01	0.68903700000000000
1998-01-01	0.34202600000000000
1999-01-01	0.65376600000000000
2000-01-01	2.31901000000000000
2001-01-01	3.43284000000000000
2002-01-01	4.29463000000000100
2003-01-01	5.06053000000000000
2004-01-01	6.64584000000000000
2005-01-01	8.58838999999999900
2006-01-01	7.01361000000000100
2007-01-01	7.79255000000000000
2008-01-01	7.61133999999999900
2009-01-01	9.82483000000000000
2010-01-01	7.73267000000000000
2011-01-01	11.07610000000000000
2012-01-01	12.01950000000000000
2013-01-01	13.94140000000000000
2014-01-01	16.59470000000000000
2015-01-01	17.16830000000000000
2016-01-01	15.56240000000000000