Year	Number
2007-01-01	151495
2008-01-01	345429
2009-01-01	316758
2010-01-01	297169
2011-01-01	274351
2012-01-01	289378
2013-01-01	281484
2014-01-01	269098
2015-01-01	264778
2016-01-01	279854
2017-01-01	329373