Year	Number
2004-01-01	299
2005-01-01	365
2006-01-01	432
2007-01-01	508
2008-01-01	541
2009-01-01	658
2010-01-01	793
2011-01-01	858
2012-01-01	1061
2013-01-01	1158
2014-01-01	1202
2015-01-01	1285
2016-01-01	1344