Sale 1:

https://backpack.tf/profiles/76561198072803929#!/compare/1527120000/1527206400

https://backpack.tf/profiles/76561198355533025#!/compare/1527206400/1527724800

Sold for 12 keys.

Sale 2:

https://backpack.tf/profiles/76561198362185176#!/compare/1525392000/1525478400

https://backpack.tf/profiles/76561198209648320#!/compare/1525219200/1525478400

Sold for Blizzardy Bonk Helm + 8.77 keys in sweets

This will end up high

Sale 3:

https://backpack.tf/profiles/76561198054758757#!/compare/1526169600/1526256000

https://backpack.tf/profiles/76561198107949813#!/compare/1526083200/1526256000

Sold for 10 keys

Sale 4:

https://backpack.tf/profiles/76561198011321852#!/compare/1527638400/1527724800

https://backpack.tf/profiles/76561198046160451#!/compare/1527638400/1527724800

Sold for 25 keys

Sale 5:

https://backpack.tf/profiles/76561198042523095#!/compare/1524441600/1524700800

https://backpack.tf/profiles/76561198057436685#!/compare/1524700800/1524787200

Sold for 12 keys

Sale 6:

https://backpack.tf/profiles/76561198178043561#!/compare/1527724800/1527811200

https://backpack.tf/profiles/76561198044684270#!/compare/1527724800/1527811200

Keys, probably QS

Sale 7:

https://backpack.tf/profiles/76561198048792033#!/compare/1525996800/1526083200

https://backpack.tf/profiles/76561198096009384#!/compare/1525132800/1526342400

Untraceable. Keys?

Sale 8:

https://backpack.tf/profiles/76561198069671053#!/compare/1524873600/1524960000

https://backpack.tf/profiles/76561198187501755#!/compare/1524614400/1524960000

Using there.

Sale 9:

https://backpack.tf/profiles/76561198187501755#!/compare/1524960000/1525824000

https://backpack.tf/profiles/76561198112224523#!/compare/1525824000/1526083200

Sold for 17 keys

Sale 10:

https://backpack.tf/profiles/76561197987317160#!/compare/1525996800/1526256000

SCM sale

Sale 11:

https://backpack.tf/profiles/76561198047387603#!/compare/1527292800/1527465600

https://backpack.tf/profiles/76561198071012049#!/compare/1527379200/1527465600

Sold for Showstopper Brewed(14.5)

Sale 12:

https://backpack.tf/profiles/76561198071012049#!/compare/1529280000/1529366400

https://backpack.tf/profiles/76561198086586661#!/compare/1529193600/1529366400

Sold for 18 keys

Sale 13:

https://backpack.tf/profiles/76561198052267968#!/compare/1526342400/1526774400

Low.

Sale 14:

https://backpack.tf/profiles/76561198052267968#!/compare/1527120000/1527552000

https://backpack.tf/profiles/76561198367266297#!/compare/1527206400/1527465600

Sold for Steaming Swatter + 2 keys

Swatter Mini:

https://marketplace.tf/items/626;5;u36

Sale for 29.99 USD

Total is ~15 keys

http://www.tf2outpost.com/trade/29658944

B/O of 18 keys.

Total is 17 keys.

Sale 15:

https://backpack.tf/profiles/76561198367266297#!/compare/1527638400/1527724800

https://backpack.tf/profiles/76561198095022965#!/compare/1527638400/1527724800

Bulk.

Sale 16:

https://backpack.tf/profiles/76561198095022965#!/compare/1529020800/1529280000

https://backpack.tf/profiles/76561198268843000#!/compare/1529193600/1529280000

Sold for 18 keys

Sale 17 & 18:

https://marketplace.tf/items/1113;5;u3003

2 sales for 34.99 USD

Total is around ~18 keys.

Total sales @:

10, 12, 12, 14.5, 17, 17, 18, 18, 18, 18, 25

https://i.imgur.com/tl0Aoez.jpg

Buyers up to 8 keys

Sellers down to ~13 keys

Unsold for 19 at 4 months.

High amount of sales at 17 - 18, especially for full pure, shouldn't be ignored.

Calling 10 and 25 the outlier.

Taking 12 - 18 keys