Year	Number
2004-01-01	76654
2005-01-01	110749
2006-01-01	159251
2007-01-01	215360
2008-01-01	262314
2009-01-01	249483
2010-01-01	238513
2011-01-01	209952
2012-01-01	226564
2013-01-01	49460
2014-01-01	54102
2015-01-01	53342
2016-01-01	47093
2017-01-01	40159