Year	Percent
1999-01-01	39.09910000000000
2000-01-01	52.43190000000000
2001-01-01	61.79870000000000
2002-01-01	82.75040000000000
2003-01-01	166.52599999999998
2004-01-01	173.56700000000000
2005-01-01	158.62300000000000
2006-01-01	177.45200000000000
2007-01-01	181.63500000000000
2008-01-01	166.55300000000000
2009-01-01	204.52700000000002
2010-01-01	208.53400000000002
2011-01-01	197.97000000000000
2012-01-01	227.09099999999998
2013-01-01	220.00700000000000
2014-01-01	203.75900000000001
2015-01-01	212.11400000000000
2016-01-01	200.45500000000000