Year	Number
2004-01-01	31936
2005-01-01	33601
2006-01-01	33210
2007-01-01	33347
2008-01-01	30975
2009-01-01	30930
2010-01-01	33068
2011-01-01	58092
2012-01-01	50678
2013-01-01	50096
2014-01-01	102030
2015-01-01	53375
2016-01-01	88796