Year	Number
2004-01-01	127.5903
2005-01-01	138.8383
2006-01-01	191.4077
2007-01-01	208.3660
2008-01-01	207.3708
2009-01-01	213.3651
2010-01-01	239.4108
2011-01-01	258.1971
2012-01-01	270.1953
2013-01-01	289.1138
2014-01-01	303.3882
2015-01-01	335.3687
2016-01-01	344.2050