Year	Percent
1996-01-01	3.7612099999999997
1997-01-01	9.3714700000000000
1998-01-01	7.8059100000000010
1999-01-01	8.3980199999999990
2000-01-01	8.9990899999999990
2001-01-01	11.1995000000000000
2002-01-01	5.7296500000000000
2003-01-01	0.4474170000000000
2004-01-01	9.7737500000000000
2005-01-01	5.8701500000000000
2006-01-01	0.1741750000000000
2007-01-01	8.9549700000000000
2008-01-01	6.7017200000000000
2009-01-01	5.7076199999999995
2010-01-01	5.3050200000000000
2011-01-01	5.8211900000000005
2012-01-01	4.3344800000000000
2013-01-01	2.5358800000000000
2014-01-01	2.8106000000000000
2015-01-01	6.3081000000000000
2016-01-01	6.1693600000000000
