Year	Percent
1998-01-01	2.10055999999999980
1999-01-01	2.10055999999999980
2000-01-01	1.41569000000000000
2001-01-01	2.39243000000000000
2002-01-01	4.11341000000000000
2003-01-01	3.10256000000000000
2004-01-01	2.79517999999999980
2005-01-01	1.00142999999999980
2006-01-01	1.32105000000000000
2007-01-01	0.98636200000000010
2008-01-01	1.01435000000000000
2009-01-01	0.43087299999999995
2010-01-01	0.47235800000000000
2011-01-01	0.42181199999999996
2012-01-01	0.94282300000000000
2013-01-01	0.30179600000000000
2014-01-01	0.93761200000000010
2015-01-01	1.07285000000000000
2016-01-01	0.08089900000000000