Year	Number
2004-01-01	71.5652
2005-01-01	141.5800
2006-01-01	156.4866
2007-01-01	162.8924
2008-01-01	157.8488
2009-01-01	116.1120
2010-01-01	105.1746
2011-01-01	137.9645
2012-01-01	136.9677
2013-01-01	111.0081
2014-01-01	128.6741
2015-01-01	132.3836
2016-01-01	153.1658