low but common.

SALE 1

unknown - sold to bot

https://backpack.tf/profiles/76561198122468689#!/compare/1563062400/1563321600

https://backpack.tf/profiles/76561198305676157#!/compare/1562976000/1563062400

SALE 2

sold with sweets worth less than half a key for 22 keys

https://backpack.tf/profiles/76561198394457682#!/compare/1559174400/1559260800

https://backpack.tf/profiles/76561198132113819#!/compare/1559174400/1559260800

rounds up to 22 keys

SALE 3

not sure, but seems like 21 keys

https://backpack.tf/profiles/76561198132113819#!/compare/1559692800/1559779200

https://backpack.tf/profiles/76561198086391687#!/compare/1559692800/1559779200

SALE 4

sold for 22 keys + 5 refined

https://backpack.tf/profiles/76561198086391687#!/compare/1559779200/1559865600

https://backpack.tf/profiles/76561198357845246#!/compare/1559779200/1559865600

rounds down to 22 keys

SALE 5

sold to bot

https://backpack.tf/profiles/76561198357845246#!/compare/1560729600/1561248000

SALE 6

sold to quickbuyer

https://backpack.tf/profiles/76561198269395083#!/compare/1561852800/1562025600

SALE 7

not sure - but i know atleast 10 keys were involved.

https://backpack.tf/profiles/76561198337734785#!/compare/1562025600/1562112000

https://backpack.tf/profiles/76561198122468689#!/compare/1562025600/1562112000

likely sold for 22

b/o was 22

https://bot.tf/stats/listings/4R85PD9Y

SALE 8

sold for keys - not sure how many though.

https://backpack.tf/profiles/76561198970685832#!/compare/1562112000/1562198400

https://backpack.tf/profiles/76561198267189538#!/compare/1562112000/1562198400

b/o was 22

https://bot.tf/stats/listings/4ZGW6J0M

SALE 9

unknown

https://backpack.tf/profiles/76561198855061841#!/compare/1560297600/1560384000

SALE 10

unknown

https://backpack.tf/profiles/76561198337734785#!/compare/1560729600/1560816000

https://backpack.tf/profiles/76561198298284062#!/compare/1560729600/1561334400

b/o was 23

https://bot.tf/stats/listings/MGV260QM

SALE 11

qs for 19 keys + 14 refined

https://backpack.tf/profiles/76561198122096342#!/compare/1561334400/1561593600

rounds down to 19 keys

classifieds at the time of making this suggestion.

https://gyazo.com/56d569a9b3f59a3add542addacfe941e

unconfirmed sales at 21, 22, 22, and 23. sales at 19, 22, and 22. 19 is low due to it being a quicksale. yes there are buyers at 22, but 22 seems to be quite common, with confirmed sales and buyouts (which is more supportive). taking 22 keys here.