True, partially. But the growth was much slower over longer period of time while after 50s the population of developing nations almost quadrupled in 1/2 century

True, partially. But the growth was much slower over longer period of time while after 50s the population of developing nations almost quadrupled in 1/2 century. https://ourworldindata.org/world-population-growth https://ourworldindata.org/world-population-growth