Year	Number
2004-01-01	200
2005-01-01	235
2006-01-01	268
2007-01-01	315
2008-01-01	358
2009-01-01	386
2010-01-01	394
2011-01-01	405
2012-01-01	391
2013-01-01	423
2014-01-01	443