Year	Percent
1993-01-01	7.000580000000000
1994-01-01	10.227600000000000
1995-01-01	12.587900000000000
1996-01-01	13.565300000000000
1997-01-01	15.325200000000000
1998-01-01	11.580500000000000
1999-01-01	8.947569999999999
2000-01-01	11.909300000000000
2001-01-01	29.216500000000000
2002-01-01	25.704800000000000
2003-01-01	21.259400000000000
2004-01-01	21.220700000000000
2005-01-01	18.011000000000000
2006-01-01	15.029100000000000
2007-01-01	13.774800000000000
2008-01-01	13.194500000000000
2009-01-01	19.096900000000000
2010-01-01	18.921900000000000
2011-01-01	17.010500000000000
2012-01-01	17.735000000000000
2013-01-01	15.983600000000000
2014-01-01	15.126700000000000
2015-01-01	14.495000000000000
2016-01-01	12.711600000000000