Year	Number
2004-01-01	343
2005-01-01	367
2006-01-01	419
2007-01-01	429
2008-01-01	485
2009-01-01	501
2010-01-01	542
2011-01-01	622
2012-01-01	677
2013-01-01	708
2014-01-01	748
2015-01-01	816
2016-01-01	816