Year	Number
2004-01-01	1173988
2005-01-01	1367258
2006-01-01	1304587
2007-01-01	1682454
2008-01-01	1722290
2009-01-01	1666903
2010-01-01	1726350
2011-01-01	2157190
2012-01-01	2274669
2013-01-01	2008701
2014-01-01	2291167
2015-01-01	2392734
2016-01-01	1884652