Year	Percent
1999-01-01	2.03392000000000000
2000-01-01	2.77908000000000000
2001-01-01	0.41520200000000007
2002-01-01	0.50643700000000000
2003-01-01	0.37400900000000004
2004-01-01	1.14222999999999990
2005-01-01	1.43913999999999990
2006-01-01	1.55332999999999990
2007-01-01	1.42050000000000000
2008-01-01	55.50490000000000000
2009-01-01	81.54030000000000000
2010-01-01	72.48020000000000000
2011-01-01	61.87699999999999500
2012-01-01	72.89250000000000000
2013-01-01	55.51060000000000000
2014-01-01	47.24680000000000000
2015-01-01	37.92060000000000000
2016-01-01	29.34390000000000000