equilibrium_age_distribution.Rd
Estimate the equilbrium age distribution given a lifetable (probability, of death in each year). Life table raw data can be obtained from http://apps.who.int/gho/data/node.main.687?lang=en. The input used is the "nqx - probability of dying between ages x and x+n" column, which is then smoothly extrapolated to yearly probabilities.
equilibrium_age_distribution(life_table)
Proportion of population in each age group (at equilibrium)