Year	Number
2004-01-01	2882.0810
2005-01-01	3073.3767
2006-01-01	2821.0741
2007-01-01	3081.3511
2008-01-01	3130.2423
2009-01-01	3313.1314
2010-01-01	2891.8989
2011-01-01	2803.9516
2012-01-01	2769.8141
2013-01-01	3008.6740
2014-01-01	2941.5669
2015-01-01	2547.4987
2016-01-01	2539.1567