Year	Percent
1990-01-01	43.54360000000000
1991-01-01	44.58140000000000
1992-01-01	43.18370000000000
1993-01-01	43.26680000000000
1994-01-01	46.07870000000000
1995-01-01	47.27880000000000
1996-01-01	48.23150000000000
1997-01-01	64.04990000000000
1998-01-01	87.48010000000000
1999-01-01	97.58660000000000
2000-01-01	87.41310000000000
2001-01-01	92.81060000000000
2002-01-01	113.09299999999999
2003-01-01	125.20700000000001
2004-01-01	131.55400000000000
2005-01-01	122.68200000000000
2006-01-01	128.76700000000000
2007-01-01	138.98100000000000
2008-01-01	161.81799999999998
2009-01-01	160.09200000000000
2010-01-01	179.04000000000000
2011-01-01	185.00000000000000
2012-01-01	173.09000000000000
2013-01-01	175.34799999999998
2014-01-01	170.72400000000002
2015-01-01	192.44200000000000
2016-01-01	181.94000000000000