Year	Number
2007-01-01	25407
2008-01-01	30581
2009-01-01	35588
2010-01-01	40230
2011-01-01	46338
2012-01-01	75112
2013-01-01	79068
2014-01-01	75657
2015-01-01	99160
2016-01-01	86440
2017-01-01	91773