Yes, im fixing stuff.

4 years outdated! O-O

Sale 1: http://backpack.tf/profiles/76561198076020691#!/compare/1492214400/1492300800 - No idea how much pure, since 2 hats were sold to Lego from Zen at once.

Sale 2: http://backpack.tf/profiles/76561198160062501#!/compare/1492041600/1492387200 - 80 keys

http://i.imgur.com/olfo6Yh.png - Taking 80.

Sale 3: http://backpack.tf/item/1248941982 for http://backpack.tf/item/3003797341 + http://backpack.tf/item/3124222724

Using on taunt.

Sale 4: http://backpack.tf/profiles/76561198202554772#!/compare/1492646400/1493251200 - 95 keys

http://i.imgur.com/mQpHJ4y.png - Taking 50.

Sale 5: http://backpack.tf/profiles/76561198152450763#!/compare/1489276800/1489363200 - 57 pure.

Sale 6: http://backpack.tf/profiles/76561198072650344#!/compare/1489276800/1489449600 - 63 keys

Sale 7: http://backpack.tf/profiles/76561198072650344#!/compare/1489449600/1489536000 - 50 keys

Sales at: 80, 95, 57, 63 and 50. Sellers at 85 and 100: http://i.imgur.com/zNShApU.png. Calling sales at 50 and 95 outliers. Rounding and going with a range of 60-80.