Year	Percent
1996-01-01	15.97830
1997-01-01	18.58100
1998-01-01	23.09660
1999-01-01	14.01570
2000-01-01	12.28250
2001-01-01	11.36800
2002-01-01	6.55360
2003-01-01	9.92429
2004-01-01	10.33910
2005-01-01	9.44718
2006-01-01	37.74310
2007-01-01	10.22240
2008-01-01	11.21060
2009-01-01	11.22210
2010-01-01	10.00040
2011-01-01	11.30640
2012-01-01	10.92140
2013-01-01	12.15550
2014-01-01	8.18546
2015-01-01	11.56920
2016-01-01	10.73840