Year	Number
2004-01-01	0.0011
2005-01-01	0.0011
2006-01-01	0.0011
2007-01-01	0.0011
2008-01-01	0.0011
2009-01-01	0.0011
2010-01-01	0.0011
2011-01-01	0.0011
2012-01-01	0.0011
2013-01-01	0.0004
2014-01-01	0.0004
2015-01-01	0.0004
2016-01-01	0.0004
2017-01-01	0.0004