Year	Number
2004-01-01	116859
2005-01-01	137106
2006-01-01	164498
2007-01-01	226042
2008-01-01	250287
2009-01-01	262398
2010-01-01	280286
2011-01-01	328087
2012-01-01	382825
2013-01-01	440425
2014-01-01	491856
2015-01-01	547724
2016-01-01	578847
2017-01-01	630437