Take 2

Let's see what we got here:

Sale 1: Sold for Professional Killstreak Australium Black Box (17.5); IDs of the keys/Blutsauger does not match; rounding to 18

http://backpack.tf/profiles/76561198088878793#!/compare/1493769600/1493856000

Sale 2: 17 keys pure; maybe QS

http://backpack.tf/profiles/76561198173442901#!/compare/1497312000/1497398400

Sale 3: 16.5 keys pure; rounding to 17

http://backpack.tf/profiles/76561198088878793#!/compare/1496448000/1496534400

Sale 4: 14 keys + Dead Presidents Dead Cone (12) --> 26

http://backpack.tf/profiles/76561198313018251#!/compare/1492819200/1492905600

Mini Dead Cone http://backpack.tf/suggestion/59426ecd0e2cad411c1e7612

Sale 5: Vivid Plasma Counterfeit Billycock (15.5) + Dead Presidents Dead Cone (12) --> 27.5; rounding to 28

http://backpack.tf/profiles/76561198313018251#!/compare/1493856000/1494028800

Mini Dead Cone: http://backpack.tf/suggestion/59426ecd0e2cad411c1e7612

Sale 6: Sold for Aces High Minnesota Slick (19)

http://backpack.tf/profiles/76561198114635132#!/compare/1492473600/1492560000

Sale 7: Bulk

http://backpack.tf/profiles/76561198028274974#!/compare/1493683200/1493769600

Sale 8: Bulk

http://backpack.tf/profiles/76561198180484678#!/compare/1493942400/1494028800

Sale #9 Sold for ~18.5 Keys, rounds to 19(Credits to Cashew for the sale)

https://backpack.tf/profiles/76561198166691534#!/compare/1498262400/1498348800

Sale # 10 Sold for a Kill-a-Watt Gentleman's Ushanka(18 Keys) and a Steaming Attendant(B/O was 22) (credits to Mindacos)

https://backpack.tf/profiles/76561198174785385#!/compare/1496275200/1499385600

http://imgur.com/a/9PnNM

Sales at 17, 17, 18, 19 19, 22, 26, 28.

One of the two 17 sold really fast (within a day) whereas the other one took about a month to sell so I want to include it.

Seller at 23

http://i.imgur.com/JcDmpbA.png

Suggesting 17-22 and calling anything above high