[meritt]

You seem to be forgetting that during this time period the world population grew from 2.5B to 7.5B. That's faster than the fertility rate decreased.

> Globally, the population of young people has decreased.

The proportion of the population which are young people has decreased but the total population of young people has increased significantly: https://data.worldbank.org/indicator/SP.POP.0014.TO

[crazynick4]

> You seem to be forgetting that during this time period the world population grew from 2.5B to 7.5B.

Older people were also staying alive longer - the death rate no longer offset the birth rate to the same extent as before.

[twoslide]

Indeed, I missed "% of total" on that graph, thanks