Year	Number
2004-01-01	0.0106
2005-01-01	0.0105
2006-01-01	0.0104
2007-01-01	0.0102
2008-01-01	0.0101
2009-01-01	0.0099
2010-01-01	0.0098
2011-01-01	0.0097
2012-01-01	0.0096
2013-01-01	0.0032
2014-01-01	0.0031
2015-01-01	0.0031
2016-01-01	0.0030
2017-01-01	0.0030