Year	Percent
1995-01-01	41.97220
1996-01-01	32.76030
1997-01-01	23.11780
1998-01-01	25.90050
1999-01-01	22.02720
2000-01-01	19.76050
2001-01-01	20.05270
2002-01-01	20.73450
2003-01-01	16.88240
2004-01-01	13.62280
2005-01-01	10.43530
2006-01-01	19.42670
2007-01-01	20.22140
2008-01-01	5.43445
2009-01-01	5.54769
2010-01-01	8.52159
2011-01-01	9.29990
2012-01-01	13.10160
2013-01-01	14.01900
2014-01-01	12.71180
2015-01-01	19.13030
2016-01-01	15.24710