Year	Number
2007-01-01	17.6486
2008-01-01	19.4606
2009-01-01	39.8131
2010-01-01	46.3707
2011-01-01	55.1427
2012-01-01	68.6147
2013-01-01	75.5250
2014-01-01	104.0413
2015-01-01	121.7692