§ Direct comparisons cannot be made between the 1979 and 1981 figures. The 1979 entitlement was estimated without reference to heating additions because it could not be established from survey data whether such additions were appropriate. By 1981 heating additions for pensioners aged 70 and over had become automatic and were therefore taken into account in the calculation of entitlement. However, if the heating additions are excluded from the calculation, the increase in the take-up figures between 1979 and 1981 is seven percentage points—an increase in 1981 from 65 per cent. to 72 per cent. This represents a welcome improvement in take-up between the two dates.