Year	Months
2004-01-01	0.1216838431616230
2005-01-01	0.2031942069897010
2006-01-01	0.2825479009534360
2007-01-01	0.2767023938919960
2008-01-01	0.0164871688523795
2009-01-01	0.8134717889096100
2010-01-01	0.5862552984625610
2011-01-01	0.5238823399124630
2012-01-01	0.5551618588918950
2013-01-01	0.4163009263288400
2014-01-01	0.4841989693269650
2015-01-01	0.6331530026552100
2016-01-01	0.7624479511903170
2017-01-01	0.5055610011696160
2018-01-01	0.3806725489039710
2019-01-01	0.3613145261652260