You didn't change the low-end, since it's 54 instead of 56. Anyways, this is going to be close enough due to these minor errors:

- Two keys were added with the Valley in sale 1, but still caps at 56:

https://backpack.tf/profiles/76561198118199330#!/compare/1500163200/1501286400

- The Strange Soldier's Stogie (sales on SCM around ~2.8) was added with the Valley in sale 2, and 24 ref were added with the Pickel

https://backpack.tf/profiles/76561198014269804#!/compare/1501977600/1502064000

https://backpack.tf/profiles/76561198085628805#!/compare/1501977600/1502064000

So that sale should be ~62 keys total (Pickel mini rounds to 64), and the correct range should be 56-62.

However, that's a whopping 0.5 change in the mean, and it's a raise in both cases. Going to accept this as close enough, but in the future remember to double check sweets added in each sale.