Year	Percent
1995-01-01	34.9722357725000
1996-01-01	34.7086487825000
1997-01-01	34.2311271400000
1998-01-01	33.4287349775000
1999-01-01	32.0228846900000
2000-01-01	31.5051827750000
2001-01-01	31.6708591675000
2002-01-01	30.7434094025000
2003-01-01	30.0851559700000
2004-01-01	29.6455090125000
2005-01-01	29.2859728975000
2006-01-01	29.0255803125000
2007-01-01	27.9867316075000
2008-01-01	27.6329585350000
2009-01-01	26.7664845950000
2010-01-01	26.3770367650000
2011-01-01	26.0101709925000
2012-01-01	23.1166666666667
2013-01-01	22.9916666666667
2014-01-01	21.6250000000000
2015-01-01	21.9500000000000
2016-01-01	21.4583333333333
2017-01-01	21.2250000000000