Year	Percent
1994-01-01	24.9550
1995-01-01	23.9583
1996-01-01	24.3272
1997-01-01	26.4406
1998-01-01	32.1298
1999-01-01	33.1898
2000-01-01	30.6072
2001-01-01	32.7338
2002-01-01	38.0126
2003-01-01	42.1785
2004-01-01	44.7562
2005-01-01	48.1627
2006-01-01	53.2768
2007-01-01	57.1158
2008-01-01	61.1608
2009-01-01	67.7563
2010-01-01	67.9595
2011-01-01	69.1939
2012-01-01	71.2285
2013-01-01	70.4791
2014-01-01	69.1252
2015-01-01	65.8487
2016-01-01	61.2993