Using the UN 5 year data it is possible to derive “synthetic” death rates for each 5 year period.
These values allow us to "predict the past". Fixed "HIGH" and "LOW" death profiles are used to make future projections.
An example is under the "Basic data/methodology" discussion item.
The graph shows variation of death rate / profile from 1950-2010 calculated for Bolivia.
Notice how the death rates have dropped over the last 60 years particularily for the 5-10 year age group.
The actual death profiles used in the projections are :- "HIGH" = death profile for Bolivia (2010).
and "LOW"= death profile for France (2010).
The graph below shows comparison of these two profiles