English: "A The world population continues to grow and has reached nearly 8 billion people (bars). A preeminent increase has occurred in those older than 70 years of age (blue line), outpacing those younger than 70 years of age (pink line). B While in 1950 a ‘youthful’ age distribution (green) typified all geographies, by 2020 a fourth of the globe had transitioned to an ‘aging’ structure (white). Forecasts for 2100 imply that over 80% percent of all territories/areas will exhibit an ‘aging’ or ‘advanced aging’ composition (orange). Percent of population ≥70 years of age is stratified and color-coded in <10% (green), 10–20% (white), and ≥20% (orage) strata."