The use of new model life tables at very low mortality in population projections.

"New model life tables have been calculated...modifying the regional model life tables by Coale, Demeny and Vaughan published in 1983.... The purpose of the present article is not to repeat the description of the construction of the tables but to provide a systematic procedure for their use in projecting mortality into the future in low-mortality populations. The new model life tables incorporate age patterns of mortality that conform quite closely to the patterns in the lowest mortality populations yet on record and present extrapolated schedules that include systematic extensions of recent changes in age-specific mortality rates."