Year	Percent
1996-01-01	26.007200000000000
1997-01-01	10.462000000000000
1998-01-01	8.932330000000000
1999-01-01	8.591339999999999
2000-01-01	8.622650000000000
2001-01-01	8.622650000000000
2002-01-01	8.622650000000000
2003-01-01	2.310740000000000
2004-01-01	9.930190000000000
2005-01-01	20.470600000000000
2006-01-01	19.574100000000000
2007-01-01	21.490900000000000
2008-01-01	15.000500000000000
2009-01-01	12.428300000000000
2010-01-01	15.473600000000000
2011-01-01	13.787600000000000
2012-01-01	9.885100000000000
2013-01-01	7.576919999999999
2014-01-01	7.011950000000000
2015-01-01	6.748080000000000
2016-01-01	8.467430000000000