7000000000 (number)

7000000000 was a number.

In 2018, the Twelfth Doctor noted Earth's population to be seven billion. (TV: The Lie of the Land) In 2018 (TV: The Battle of Ranskoor Av Kolos), early 2019 (TV: Resolution), and early 2020s, the Thirteenth Doctor approximated it at the same value. (TV: Praxeus)