Start of the period	End of the period	Due date
March	2013-01-01	2013-03-31	2013-04-30
June	2013-04-01	2013-06-30	2013-07-31
September	2013-07-01	2013-09-30	2013-10-31
December	2013-10-01	2013-12-31	2014-01-31