Year	Number
2004-01-01	2277933
2005-01-01	2469000
2006-01-01	2649728
2007-01-01	2991333
2008-01-01	3241404
2009-01-01	3360843
2010-01-01	3586789
2011-01-01	3463971
2012-01-01	3670361
2013-01-01	3989925
2014-01-01	3707806
2015-01-01	2235866
2016-01-01	2498743
2017-01-01	2695480