Year	Percent
1996-01-01	2.8000800000000000
1997-01-01	24.9425000000000000
1998-01-01	12.8353000000000000
1999-01-01	4.0135100000000000
2000-01-01	6.7532500000000000
2001-01-01	3.7811000000000000
2002-01-01	9.2121600000000000
2003-01-01	9.0380000000000000
2004-01-01	10.3879000000000000
2005-01-01	25.7150000000000000
2006-01-01	31.0422000000000000
2007-01-01	9.0025000000000000
2008-01-01	16.4361000000000000
2009-01-01	9.3895800000000000
2010-01-01	14.8292000000000000
2011-01-01	4.6851199999999995
2012-01-01	4.4889500000000000
2013-01-01	1.5972899999999999
2014-01-01	5.6108800000000000
2015-01-01	4.4741000000000000
2016-01-01	7.7750200000000000
2017-01-01	5.2097500000000000