Year	Number
2007-01-01	160.1181
2008-01-01	197.9203
2009-01-01	225.2846
2010-01-01	267.7337
2011-01-01	292.4651
2012-01-01	335.1511
2013-01-01	374.9793
2014-01-01	395.7923
2015-01-01	419.8741
2016-01-01	446.4489