What's going on with the marketplace.tf sales here?!

New price: 12-13 keys

Proof:

Sale #1 (1 month)= 13 keys

https://backpack.tf/profiles/76561198216025421#!/compare/1526169600/1526342400

Sold for 12 keys 22 ref 2 rec. Rounding to 13 keys.

Sale #2 (fresh)= 13 keys

https://backpack.tf/profiles/76561198273331466#!/compare/1527811200/1527984000

Sold for 13 keys 5 ref. Rounding to 13.

Sale #3 (1 week)= 12 keys

https://backpack.tf/profiles/76561198059021831#!/compare/1527379200/1527465600

Sold for 12 keys 5 ref 4 weps. Rounding to 12 keys.

Sale #4 (2 months)= 13 keys

https://backpack.tf/profiles/76561198382589541#!/compare/1523750400/1523836800

Sold for 13 keys.

Sale #5 (2 months)= invalid

https://backpack.tf/profiles/76561198137160509#!/compare/1523491200/1523577600

Sold for 11 keys to a bot. Quicksell.

Sale #6 (2 months)= 19 keys

https://marketplace.tf/items/109;5;u18

Sold for 36.99$. Keys were 1.97$. 36.99 / 1.97 = ~19 keys.

Sale #7 (2 months)= 18 keys

https://marketplace.tf/items/109;5;u18

Sold for 35.99$. Keys were 1.98$. 35.99 / 1.98 = ~18 keys.

Sale #8 (2 months)= 19 keys

https://marketplace.tf/items/109;5;u18

Sold for 34$. Keys were 1.97$. 34 / 1.97 = ~17 keys.

_________________________________________________________

SUMMARY

Sales:

12

13 x3

17

18

19

Marketplace.tf sales all seem high and looking at sellers and buyers (https://imgur.com/a/0qRBdFs) confirms they are. Excluding.

13 flat would be worth thinking about, since it seems like a more common trading point as 12.

For now going with 12-13 keys.

Feel free to add proof to support or counter my new price.