Year	Number
2006-01-01	238150
2007-01-01	203918
2008-01-01	249213
2009-01-01	271772
2010-01-01	286421
2011-01-01	290749
2012-01-01	303179
2013-01-01	306900
2014-01-01	305495
2015-01-01	310898
2016-01-01	324625
2017-01-01	350036