UK sales
[Week 21, 2009] POKÉMON PLATINUM (NINTENDO) - 59,000 / NEW
[Week 12, 2010] POKÉMON HEARTGOLD / SOULSILVER (NINTENDO) - 90,000 / NEW
[Week 09, 2011] POKÉMON BLACK / WHITE (NINTENDO) ~ 125,000 - 144,000 / NEW
[Week 41, 2012] POKÉMON BLACK 2 / WHITE 2 (NINTENDO) - 62,000 / NEW
[Week 41, 2013] POKÉMON X / Y (NINTENDO) - 124,000 / NEW
[Week 48, 2014] POKÉMON OMEGA RUBY / ALPHA SAPPHIRE (NINTENDO) - 145,000 / NEW
[Week 47, 2016] POKÉMON SUN / MOON (NINTENDO) - 290,000 / NEW
[Week 46, 2017] POKÉMON ULTRA SUN / ULTRA MOON (NINTENDO) - 78,000 / NEW
[Week 46, 2018] POKÉMON LET'S GO, PIKACHU! +POKÉMON LET'S GO, EEVEE! (NINTENDO) - 116,000 / NEW
But remember DS/3DS install base was much larger and DS/3DS game were 40 bucks rather than 60. Take that as you will, but it is selling as well as any other pokemon game with less install base and higher price point
