GDO PRORATION TABLE Available working days 29 day block month 30 day block month 31 day block month 32 day block month 33 day block month 1 0 0 0 0 0 2 1 1 1 1 1 3 1 1 1 1 1 4 2 2 2 2 2 5 2 2 2 2 […]