ポケモンの世界売上に占める日本の割合、ピカブイが最低
https://nintendosoup.com/percentage-of-japanese-buying-pokemon-games-sinks-to-all-time-low-with-pokemon-lets-go/

Game : Sales in Japan / Sales worldwide / Percentage
Pokemon Diamond and Pearl: 5.82 million / 17.67 million / 32.9%
Pokemon Black and White: 5.49 million / 15.64 million / 35.1%
Pokemon X and Y: 4.55 million / 16.37 million / 27.8%
Pokemon Sun and Moon: 3.91 million / 16.14 million / 24.2%
Pokemon Let’s GO Pikachu and Eevee: 1.85 million / 10 million / 18.5%