Year	Number
2004-01-01	0.3550
2005-01-01	0.4020
2006-01-01	0.4020
2007-01-01	0.4020
2008-01-01	0.7475
2009-01-01	0.8533
2010-01-01	1.8970
2011-01-01	2.1274
2012-01-01	3.3310
2013-01-01	4.0738
2014-01-01	4.3959
2015-01-01	5.5125
2016-01-01	11.6455