Year	Number
2006-01-01	105672
2007-01-01	113668
2008-01-01	138466
2009-01-01	174230
2010-01-01	217617
2011-01-01	250425
2012-01-01	266158
2013-01-01	198416
2014-01-01	242086
2015-01-01	301405
2016-01-01	325539