Year	Number
2004-01-01	44.3820
2005-01-01	46.1360
2006-01-01	66.5868
2007-01-01	62.9913
2008-01-01	79.5729
2009-01-01	77.4544
2010-01-01	82.7586
2011-01-01	110.9243
2012-01-01	131.9743
2013-01-01	128.6735
2014-01-01	130.4824
2015-01-01	127.2176