Year	Number
2005-01-01	27307
2006-01-01	27827
2007-01-01	28682
2008-01-01	30471
2009-01-01	31092
2010-01-01	31069
2011-01-01	32653
2012-01-01	35315
2013-01-01	36428
2014-01-01	38508
2015-01-01	38674
2016-01-01	38638
2017-01-01	37551