Year	Percent
1990-01-01	16.2609000000000000
1991-01-01	30.0843000000000000
1992-01-01	28.4317000000000000
1993-01-01	31.9947000000000000
1994-01-01	33.5018000000000000
1995-01-01	35.3756000000000000
1996-01-01	43.5010000000000050
1997-01-01	37.6104000000000000
1998-01-01	31.6289000000000000
1999-01-01	28.5374000000000000
2000-01-01	27.7959000000000000
2001-01-01	26.9603000000000000
2002-01-01	56.6032000000000000
2003-01-01	15.7146000000000000
2004-01-01	13.7126000000000000
2005-01-01	8.6826500000000000
2006-01-01	7.0129199999999990
2007-01-01	7.6412900000000000
2008-01-01	14.8184000000000000
2009-01-01	10.7223000000000000
2010-01-01	5.5281199999999995
2011-01-01	5.1821300000000000
2012-01-01	7.3192699999999995
2013-01-01	11.8348000000000000
2014-01-01	10.1419000000000000
2015-01-01	9.4718700000000000
2016-01-01	9.6173200000000000