It's all around the world, just la la la la la.

https://backpack.tf/item/865503205

Sale 1) Sold for 8 Keys + 12 Refined

https://backpack.tf/profiles/76561198200890901#!/compare/1521504000/1521590400

Rounds to 8.5 Keys

Sale 2) Sold for 10 Keys

https://backpack.tf/profiles/76561198071983249#!/compare/1521849600/1522195200

https://backpack.tf/item/783598278

Sale 3) Sold for 8 Keys + 4 Refined

https://backpack.tf/profiles/76561198215842352#!/compare/1521072000/1521158400 - Buyer's Backpack

Sale 4) Sold for 9 Keys

https://backpack.tf/profiles/76561198215842352#!/compare/1521331200/1521417600

Sale 5) Sold for 8 Keys + 21 Refined

https://backpack.tf/profiles/76561198014337824#!/compare/1524787200/1524873600 - Buyer's Backpack

Rounds to 9 Keys

Sale 6) Sold for a Nuts and Bolts Ol' Geezer + Strange Killstreak Widowmaker

https://backpack.tf/profiles/76561198039217749#!/compare/1524182400/1524960000 - Buyer's Backpack

https://scrap.tf/auctions/7718D0 - The Seller would've accepted 8 Keys + 22 Refined, I think, so the sale caps at that? High Outlier otherwise.

Sale 7) Sold + Earbuds (1.8 Keys at the time) for an Orbiting Fire Bloke's Bucket Hat (10 Keys)

https://backpack.tf/profiles/76561198039217749#!/compare/1524960000/1525046400

Low Outlier

Bloke's Mini

https://imgur.com/a/Yp8ckcH - 8 Day Unsold at 10 Keys, 3 Month Unsold at 12 Keys. Taking 10 Keys.

Sale 8) Quicksold for 8 Keys

https://backpack.tf/profiles/76561198068200165#!/compare/1525046400/1525132800

Classifieds

https://imgur.com/a/zcB8yRF - Young Seller at 9.36 Keys, 4 Day Seller at 9.36 Keys, 5 Month Unsold at 11 Keys. The 5 Month Buyer at 8.36 Keys rules 8.2 low.