Year	Number
2007-01-01	250.1940
2008-01-01	259.3755
2009-01-01	255.9496
2010-01-01	255.8109
2011-01-01	264.7556
2012-01-01	275.0667
2013-01-01	295.3260
2014-01-01	285.9388
2015-01-01	286.8926
2016-01-01	292.1803
2017-01-01	295.9247