Year	Number
2005-01-01	9.3690
2006-01-01	10.6549
2007-01-01	14.2372
2008-01-01	22.0446
2009-01-01	31.1381
2010-01-01	38.1189
2011-01-01	42.2522
2012-01-01	44.3648
2013-01-01	45.5589
2014-01-01	45.7426
2015-01-01	49.6004
2016-01-01	47.9471