Year	Number
2004-01-01	507.2189
2005-01-01	516.2613
2006-01-01	603.9375
2007-01-01	623.0906
2008-01-01	982.1683
2009-01-01	1005.8857
2010-01-01	1144.0975
2011-01-01	897.5836
2012-01-01	934.1255
2013-01-01	1228.6130
2014-01-01	892.7661
2015-01-01	938.1431
2016-01-01	1008.0356