Year	Percent
1993-01-01	45.3320
1994-01-01	26.7549
1995-01-01	11.6666
1996-01-01	11.1171
1997-01-01	11.8119
1998-01-01	13.3729
1999-01-01	15.0843
2000-01-01	16.3508
2001-01-01	23.6656
2002-01-01	27.8347
2003-01-01	27.9058
2004-01-01	31.2711
2005-01-01	33.2013
2006-01-01	37.1927
2007-01-01	41.8491
2008-01-01	46.2990
2009-01-01	48.9199
2010-01-01	50.9025
2011-01-01	53.6472
2012-01-01	54.4208
2013-01-01	50.7537
2014-01-01	51.9103
2015-01-01	53.2951
2016-01-01	52.8250