Year	Percent
1995-01-01	28.0030000000000000
1996-01-01	28.1523000000000000
1997-01-01	28.0359000000000000
1998-01-01	22.3756000000000000
1999-01-01	21.3978000000000000
2000-01-01	12.2026000000000000
2001-01-01	11.8048000000000000
2002-01-01	10.3913000000000000
2003-01-01	2.1331000000000000
2004-01-01	1.7436700000000000
2005-01-01	1.6834600000000000
2006-01-01	17.1987000000000000
2007-01-01	12.0622000000000000
2008-01-01	12.3751000000000000
2009-01-01	13.3346000000000000
2010-01-01	10.3900000000000000
2011-01-01	9.0573500000000000
2012-01-01	12.5652000000000000
2013-01-01	6.4715300000000004
2014-01-01	5.8165700000000000
2015-01-01	4.7940900000000000