Year	Number
2008-01-01	132.6307
2009-01-01	137.6653
2010-01-01	127.9930
2011-01-01	138.8477
2012-01-01	156.4680
2013-01-01	164.2412
2014-01-01	171.7631
2015-01-01	177.1510
2016-01-01	160.3388