>>37113508UK numbers but pretty decent
source:
http://www.nintendolife.com/news/2018/11/pokemon_letrs_go_pikachu_and_eevee_combined_launch_sales_give_new_entries_strong_start_in_the_uk[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