World Population Demographics

Elderly population^* percentage pattern between 1950⁺ - 2100⁺⁺

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^*For this study adults above 55 are tagged as Elderly population
 This is to create some leniency for countries with shorter lifespan

⁺Data source: UN World Annual Population by Age as of 1st July of the year until 2019

⁺⁺Data source: UN World population probabilistic projections from 2020