Year	Number
2004-01-01	1810498
2005-01-01	1832283
2006-01-01	2010222
2007-01-01	2272460
2008-01-01	2336277
2009-01-01	2354841
2010-01-01	2500323
2011-01-01	2253341
2012-01-01	2312195
2013-01-01	2362449
2014-01-01	2291294
2015-01-01	2227674
2016-01-01	2096926