Year	Number
2007-01-01	42585
2008-01-01	47979
2009-01-01	54296
2010-01-01	59259
2011-01-01	71073
2012-01-01	88376
2013-01-01	111888
2014-01-01	107056
2015-01-01	138160
2016-01-01	103662
2017-01-01	111335