Year	Percent
1993-01-01	79.3000000000000000
1994-01-01	65.2000000000000000
1995-01-01	54.9000000000000000
1996-01-01	37.2000000000000000
1997-01-01	23.8900000000000000
1998-01-01	36.8800000000000000
1999-01-01	31.2100000000000000
2000-01-01	28.0474000000000000
2001-01-01	18.8536000000000000
2002-01-01	14.8894000000000000
2003-01-01	9.8473000000000000
2004-01-01	9.6267000000000000
2005-01-01	8.3442000000000000
2006-01-01	7.1610000000000005
2007-01-01	5.8053000000000000
2008-01-01	8.5857000000000000
2009-01-01	5.6108000000000000
2010-01-01	7.6157000000000000
2011-01-01	6.5956000000000000
2012-01-01	4.2789000000000000
2013-01-01	4.7945000000000000
2014-01-01	6.9406000000000000
2015-01-01	9.6914000000000000
2016-01-01	7.2606000000000000