Year	Number
2009-01-01	576.3875
2010-01-01	644.2372
2011-01-01	620.9157
2012-01-01	615.9090
2013-01-01	581.1558
2014-01-01	572.6282
2015-01-01	550.1744
2016-01-01	559.8024