So many sales, but rip Andrei for not being one of them:

Sale 1-3

https://marketplace.tf/items/178;5;u35

Dec 9 | 25.47/1.68 = 15.16 = 15k = Excluding

Dec 20 | 25.50/1.65 = 15.45 = 15k = Excluding

Jan 19 | 26.90/1.79 = 15.02 = 15k = Excluding

Unsold @ 14 on classifieds for 14 for 6 months, killing those marketplace.tf sales completely

Sale 4:

https://backpack.tf/profiles/76561198112316720#!/compare/1543017600/1550448000

https://backpack.tf/profiles/76561198197885873#!/compare/1540166400/1544745600

SCM sale that has no known date = Excluding

Sale 5:

https://backpack.tf/profiles/76561198113824319#!/compare/1545696000/1546214400

https://backpack.tf/profiles/76561198070513361#!/compare/1546128000/1546214400

Sold in bulk for TW Safe and Sound = Use there

Sale 6:

https://backpack.tf/profiles/76561198070513361#!/compare/1546387200/1546473600

https://backpack.tf/profiles/76561198839317660#!/compare/1546128000/1546387200

Sold for 9 keys pure = Excluding

Sale 7:

https://backpack.tf/profiles/76561198839317660#!/compare/1548028800/1548201600

https://backpack.tf/profiles/76561198055847835#!/compare/1548028800/1548201600

Bulk = Excluding

Sale 8:

https://backpack.tf/profiles/76561198798175275#!/compare/1543017600/1543190400

https://backpack.tf/profiles/76561198032176942#!/compare/1543017600/1543190400

Bulk/Quicksold = Excluding

Sale 9:

https://backpack.tf/profiles/76561198035280371#!/compare/1550275200/1550361600

https://backpack.tf/profiles/76561198355545366#!/compare/1550275200/1550361600

Sold for 12 keys pure

Sale 10:

https://backpack.tf/profiles/76561198309237889#!/compare/1550275200/1550361600

https://backpack.tf/profiles/76561198355545366#!/compare/1550275200/1550361600

Sold with 4~ in sweets for Neutron Star Toy Soldier = Use there

Sale 11:

https://backpack.tf/profiles/76561198061135134#!/compare/1544572800/1544745600

https://backpack.tf/profiles/76561198350879574#!/compare/1544659200/1544745600

Gambled = Excluded

Sale 12:

https://backpack.tf/profiles/76561198032176942#!/compare/1544745600/1544832000

https://backpack.tf/profiles/76561198350879574#!/compare/1544745600/1544832000

Unknown/Likely Quicksold = Excluding

Taking 12 keys