Year	Percent
1990-01-01	8.08333
1991-01-01	12.40750
1992-01-01	7.80917
1993-01-01	8.67750
1994-01-01	12.34920
1995-01-01	12.78920
1996-01-01	14.72830
1997-01-01	14.78750
1998-01-01	13.80250
1999-01-01	10.45920
2000-01-01	11.06080
2001-01-01	12.02920
2002-01-01	15.79460
2003-01-01	34.15870
2004-01-01	28.43600
2005-01-01	28.24830
2006-01-01	23.42290
2007-01-01	20.02250
2008-01-01	22.73000
2009-01-01	26.80140
2010-01-01	24.82330
2011-01-01	13.37300
2012-01-01	13.24260
2013-01-01	15.03060
2014-01-01	16.87940
2015-01-01	16.22340
2016-01-01	14.31900