Year	Number
2006-01-01	0.8372
2007-01-01	1.1071
2008-01-01	1.6419
2009-01-01	2.9231
2010-01-01	3.6214
2011-01-01	3.7234
2012-01-01	3.6573
2013-01-01	3.8009
2014-01-01	3.7342