The graph for the actual population projection was basically linked in the article: https://esa.un.org/unpd/wpp/Graphs/Probabilistic/POP/TOT/ https://esa.un.or

The graph for the actual population projection was basically linked in the article: https://esa.un.org/unpd/wpp/Graphs/Probabilistic/POP/TOT/ https://esa.un.org/unpd/wpp/Graphs/Probabilistic/POP/TOT/ (you have to select "WORLD" in the drop-down)