Year	Number
2004-01-01	163654
2005-01-01	195492
2006-01-01	206691
2007-01-01	242707
2008-01-01	375410
2009-01-01	412206
2010-01-01	467889
2011-01-01	617504
2012-01-01	645123
2013-01-01	858140
2014-01-01	926791
2015-01-01	1208380
2016-01-01	1326732
2017-01-01	804441