Year	Percent
1990-01-01	0.9087540000000001
1991-01-01	0.9526270000000000
1992-01-01	1.0289200000000000
1993-01-01	1.0918000000000000
1994-01-01	1.1260200000000000
1995-01-01	1.1526700000000000
1996-01-01	1.2085700000000001
1997-01-01	1.2420300000000000
1998-01-01	1.2177500000000000
1999-01-01	1.3488200000000001
2000-01-01	1.5366700000000000
2001-01-01	1.8382500000000000
2002-01-01	2.1193500000000000
2003-01-01	2.2492000000000000
2004-01-01	2.2876500000000000
2005-01-01	2.3079200000000000
2006-01-01	2.1684300000000000
2007-01-01	2.3228000000000000
2008-01-01	2.4156400000000002
2009-01-01	2.8126100000000000
2010-01-01	2.8866300000000000
2011-01-01	3.0767599999999997
2012-01-01	3.1210000000000004
2013-01-01	3.3801200000000000
2014-01-01	3.7543800000000003
2015-01-01	3.8969500000000000
2016-01-01	3.9872900000000002