Year	Percent
1996-01-01	3.7396500000000000
1997-01-01	7.5589800000000000
1998-01-01	7.8735800000000005
1999-01-01	6.4061100000000000
2000-01-01	3.5572800000000004
2001-01-01	3.5572800000000004
2002-01-01	3.5572800000000004
2003-01-01	3.5572800000000004
2004-01-01	2.3156000000000000
2005-01-01	4.5252700000000000
2006-01-01	7.1398500000000000
2007-01-01	4.2727500000000000
2008-01-01	8.8073700000000000
2009-01-01	2.5817799999999997
2010-01-01	1.5797000000000000
2011-01-01	0.8569660000000000
2012-01-01	1.8421299999999998
2013-01-01	1.8421299999999998
2014-01-01	3.2855000000000000
2015-01-01	1.4166600000000000
2016-01-01	1.6938000000000000
2017-01-01	2.7064400000000000