Year	Number
2004-01-01	242.7849
2005-01-01	259.3806
2006-01-01	283.6158
2007-01-01	304.9332
2008-01-01	316.2495
2009-01-01	322.1125
2010-01-01	326.3767
2011-01-01	345.7028
2012-01-01	372.4837
2013-01-01	381.8392
2014-01-01	414.8651
2015-01-01	446.1410
2016-01-01	456.7216