Year	Number
2007-01-01	892.5706
2008-01-01	930.4219
2009-01-01	950.7069
2010-01-01	953.0443
2011-01-01	1275.8277
2012-01-01	1315.7588
2013-01-01	1311.4696
2014-01-01	1291.7242
2015-01-01	1277.0366
2016-01-01	1280.1015
2017-01-01	1275.9234