Year	Percent
1993-01-01	43.8208
1994-01-01	52.4751
1995-01-01	55.3438
1996-01-01	62.9529
1997-01-01	71.6525
1998-01-01	72.4636
1999-01-01	71.5111
2000-01-01	75.1247
2001-01-01	77.2542
2002-01-01	79.0750
2003-01-01	82.4452
2004-01-01	85.9659
2005-01-01	88.3292
2006-01-01	91.0381
2007-01-01	94.1844
2008-01-01	96.4631
2009-01-01	97.3268
2010-01-01	97.6519
2011-01-01	98.0026
2012-01-01	98.4772
2013-01-01	98.9553
2014-01-01	99.0151
2015-01-01	99.1425
2016-01-01	99.3051