Year	Number
2008-01-01	239.2525
2009-01-01	183.4847
2010-01-01	152.7275
2011-01-01	166.6043
2012-01-01	192.1121
2013-01-01	200.6623
2014-01-01	243.2258
2015-01-01	228.9794
2016-01-01	260.4116
2017-01-01	296.8232