Year	Number
2004-01-01	881
2005-01-01	941
2006-01-01	1006
2007-01-01	1071
2008-01-01	1140
2009-01-01	1207
2010-01-01	1285
2011-01-01	1326
2012-01-01	1433
2013-01-01	1516
2014-01-01	1603
2015-01-01	1707
2016-01-01	1793
2017-01-01	1902