Year	Percent
1994-01-01	48.8755
1995-01-01	40.8201
1996-01-01	39.1842
1997-01-01	38.9311
1998-01-01	43.2723
1999-01-01	44.3372
2000-01-01	42.2241
2001-01-01	44.9475
2002-01-01	50.2442
2003-01-01	53.8976
2004-01-01	55.7909
2005-01-01	60.2997
2006-01-01	66.2203
2007-01-01	69.2270
2008-01-01	74.1844
2009-01-01	84.1982
2010-01-01	88.7929
2011-01-01	94.5228
2012-01-01	100.9550
2013-01-01	100.5890
2014-01-01	97.3874
2015-01-01	93.9743
2016-01-01	88.8047