Year	Number
2008-01-01	33447
2009-01-01	96376
2010-01-01	46567
2011-01-01	83857
2012-01-01	115728
2013-01-01	142394
2014-01-01	145145
2015-01-01	147784
2016-01-01	165662
2017-01-01	205061