Year	Percent
1993-01-01	1.8187400000000002
1994-01-01	1.7488200000000000
1995-01-01	1.9365100000000000
1996-01-01	2.4314700000000000
1997-01-01	2.0189800000000000
1998-01-01	2.1498700000000000
1999-01-01	2.4254800000000000
2000-01-01	2.5849800000000000
2001-01-01	2.7217400000000000
2002-01-01	2.5901300000000000
2003-01-01	2.5347100000000000
2004-01-01	2.6271000000000000
2005-01-01	2.9048700000000003
2006-01-01	2.7726000000000000
2007-01-01	2.6297400000000000
2008-01-01	2.6037700000000000
2009-01-01	2.6445500000000000
2010-01-01	2.6482900000000003
2011-01-01	2.3349100000000000
2012-01-01	2.1224500000000000
2013-01-01	2.0757700000000000
2014-01-01	2.0544599999999997
2015-01-01	1.9895100000000000
2016-01-01	1.7479300000000000