Year	Percent
1997-01-01	0.023426000000000000
1998-01-01	0.009082999999999999
1999-01-01	122.387000000000000000
2000-01-01	135.102999999999980000
2001-01-01	146.227000000000000000
2002-01-01	159.882000000000000000
2003-01-01	169.394000000000000000
2004-01-01	217.229000000000000000
2005-01-01	229.175000000000000000
2006-01-01	296.193000000000000000
2007-01-01	372.820000000000000000
2008-01-01	337.999000000000000000
2009-01-01	370.998000000000050000
2010-01-01	292.680000000000000000
2011-01-01	236.845999999999980000
2012-01-01	215.165000000000000000
2013-01-01	193.397000000000020000
2014-01-01	163.817999999999980000
2015-01-01	133.085000000000000000
2016-01-01	134.067000000000000000