I highly recommend to take a look at the summaries from Our World in Data if you are interested in human development [1]. We have already seen the peak of the global annual population growth rate, so most of the population growth will happen until 2050 with ~ 9.7 billion people worldwide by then. Nevertheless, there are likely to be ~ 11 billion people around in 2100 [2].
[1] https://ourworldindata.org/ [2] https://ourworldindata.org/future-population-growth
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