Year	Number
2006-01-01	12.4738
2007-01-01	21.3180
2008-01-01	24.6905
2009-01-01	26.6411
2010-01-01	36.1856
2011-01-01	39.5711
2012-01-01	44.3050
2013-01-01	46.6020
2014-01-01	49.0254
2015-01-01	57.7441
2016-01-01	67.9269