Generational Breakdown of Regional Pokedexes

This topic comes up a lot, we all groan about the Kanto Pokemon in recent dexes and I got curious enough about what the exact breakdown per generation per dex and trends over the years were. And

Fifth Pokémon generation, Nintendo

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Gorane region Pokedex updated by Morisu-san on DeviantArt

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What's in your own regional Pokédex?

Generational Breakdown of Regional Pokedexes

Pokedex Notebook: 7.50 x 9.25 100 Page by Lopes, Dianna

The Pokedex design used for the 5th generation of Pokemon games set in the Unova region.