Year	Number
2004-01-01	1070567
2005-01-01	1102873
2006-01-01	1142445
2007-01-01	1184758
2008-01-01	1257956
2009-01-01	1268646
2010-01-01	1305291
2011-01-01	1374025
2012-01-01	1424560
2013-01-01	1599121
2014-01-01	1842463
2015-01-01	1944393
2016-01-01	1845225