Year	Number
2007-01-01	35186
2008-01-01	34190
2009-01-01	30193
2010-01-01	26229
2011-01-01	22678
2012-01-01	19392
2013-01-01	17164
2014-01-01	15494
2015-01-01	14271
2016-01-01	13525
2017-01-01	14189