Year	Number
2004-01-01	122.2118
2005-01-01	152.8393
2006-01-01	172.0727
2007-01-01	190.0663
2008-01-01	177.2455
2009-01-01	180.2190
2010-01-01	173.6939
2011-01-01	192.4173
2012-01-01	250.6958
2013-01-01	293.3799
2014-01-01	276.2104
2015-01-01	294.3757
2016-01-01	372.0532