Year	Percent
2000-01-01	1.670051379775700
2001-01-01	1.083088573315140
2002-01-01	0.897335245402546
2003-01-01	1.323937946359740
2004-01-01	1.454304358488650
2005-01-01	1.586740125460550
2006-01-01	1.265975814266830
2007-01-01	1.333087894097020
2008-01-01	1.039492865276290
2009-01-01	1.653694545488090
2010-01-01	2.249261189511360
2011-01-01	1.711291667882680
2012-01-01	1.727258449588820
2013-01-01	1.229289928536810
2014-01-01	1.875108759041210
2015-01-01	1.998388686064800
2016-01-01	2.113117705673060
2017-01-01	1.938894394538630