- Number and average benefit in current-payment status at midpoint of period computed from corresponding figures shown earlier for number and average benefit in current-payment status at end of period.
- Historical rate computed by dividing amount during period by product of number and average benefit in current-payment status at midpoint of period. Future rates projected based on historical trend.
- Historical amount from 1-A Table Current-Payment Supplement; future amounts computed by applying rate to number and average benefit in current-payment status at midpoint of period.
- Total amount computed by addition of dependent and survivor amounts.