Year	Percent
1995-01-01	15.094300000000000
1996-01-01	14.601900000000000
1997-01-01	17.826400000000000
1998-01-01	25.652800000000000
1999-01-01	27.862300000000000
2000-01-01	21.677400000000000
2001-01-01	19.049900000000000
2002-01-01	15.700100000000000
2003-01-01	14.466500000000000
2004-01-01	15.815100000000000
2005-01-01	19.643500000000000
2006-01-01	24.204700000000000
2007-01-01	27.442300000000000
2008-01-01	15.231600000000000
2009-01-01	13.093600000000000
2010-01-01	11.349700000000000
2011-01-01	10.363600000000000
2012-01-01	4.912280000000000
2013-01-01	7.662710000000001
2014-01-01	8.349060000000000
2015-01-01	7.693789999999999
2016-01-01	8.953460000000000