Every single trade is here : as well most sellers only as set so not included ,

http://www.tf2outpost.com/trade/9152797 8 keys , buyer offered 7 keys then bought it for 8 .

http://www.tf2outpost.com/trade/7040271 8 keys , offered 7 keys .

http://www.tf2outpost.com/trade/3361961 no b/o , rejected 6.5 , offered 7 , unkating

http://www.tf2outpost.com/trade/9147177 offered ts for both -2 = 6.5-7 keys for sharp

http://www.tf2outpost.com/trade/9108095 7 keys : sold 1 , have extra 1

http://www.tf2outpost.com/trade/9117771 same offered 7 keys

http://www.tf2outpost.com/trade/8671046 reject 6 keys 7 times and reject 7 keys too

http://www.tf2outpost.com/trade/9131871 un taking 7 keys offer

http://www.tf2outpost.com/trade/9106983 offered 6 keys 4 ref

http://www.tf2outpost.com/trade/8931068 7 keys have buyer

http://www.tf2outpost.com/trade/9081692 no offers yet

http://www.tf2outpost.com/trade/9177215 7 keys , still new

most of buyers no success of 5 keys but success to buy for 6 keys

http://www.tf2outpost.com/trade/8780019 bought 3 for 6 keys each

http://www.tf2outpost.com/trade/8948220 bought 1 for 5.5 , bought 1 for 6

http://www.tf2outpost.com/trade/8740022 bought 2 for 6 each

Steam market average of 46 sold is 7.59 keys