Pokémon has come a long way since its inception in the late '90s. Starting with the original 151 species that made up the original Gen I roster, the total number has finally surpassed the 1000 mark with the release of the Gen IX games Scarlet & Violet at the end of 2022. All nine generations have showcased new species of Pokémon, and naturally, different types have risen and fallen in popularity over time.
Source：https://www.cbr.com/pokemon-games-best-type-every-gen-guide/
