After helping the last suggester, I might as well take a shot at this. I know I will mess up somewhere.

Classifieds at time of post: http://backpack.tf/classifieds/?item=Awper+hand&quality=1

5.66 ref x 1

6 ref x 12

QS at 5 ref:

http://www.tf2outpost.com/trade/23102738

QS at 5.33 ref:

http://www.tf2outpost.com/trade/23104860

http://www.tf2outpost.com/trade/23096470

QS at 5.66 ref:

http://www.tf2outpost.com/trade/23047506

http://www.tf2outpost.com/trade/23057744

http://www.tf2outpost.com/trade/23121621

http://www.tf2outpost.com/trade/23095647

QS at 5.88 ref:

http://www.tf2outpost.com/trade/23122245

http://www.tf2outpost.com/trade/23102630

Sales at 6 ref:

http://www.tf2outpost.com/trade/23121482

http://www.tf2outpost.com/trade/23115549

http://www.tf2outpost.com/trade/23115521

http://www.tf2outpost.com/trade/23113576

http://www.tf2outpost.com/trade/23113448

http://www.tf2outpost.com/trade/23109933

http://www.tf2outpost.com/trade/23108412

http://www.tf2outpost.com/trade/23107444

http://www.tf2outpost.com/trade/23103789

http://www.tf2outpost.com/trade/23100415

http://www.tf2outpost.com/trade/23098667

http://www.tf2outpost.com/trade/23098514

http://www.tf2outpost.com/trade/23096195

http://www.tf2outpost.com/trade/23096059

http://www.tf2outpost.com/trade/23094222

http://www.tf2outpost.com/trade/23085877

http://www.tf2outpost.com/trade/23085812

http://www.tf2outpost.com/trade/23090256

http://www.tf2outpost.com/trade/23021505

http://www.tf2outpost.com/trade/23046616

http://www.tf2outpost.com/trade/23034507

http://www.tf2outpost.com/trade/23024722

http://www.tf2outpost.com/trade/23109933

Sales at 6.33 ref:

http://www.tf2outpost.com/trade/23092136

http://www.tf2outpost.com/trade/23097513 - Really unsure about this one

Sellers at 6 ref:

http://www.tf2outpost.com/trade/23087399

http://www.tf2outpost.com/trade/23122788 - Young

http://www.tf2outpost.com/trade/23122064 - Young

http://www.tf2outpost.com/trade/23113602

http://www.tf2outpost.com/trade/23105265 - Young and unbumped

http://www.tf2outpost.com/trade/23105215 - Young

http://www.tf2outpost.com/trade/23093739 - Unbumped

http://www.tf2outpost.com/trade/23091893

Sellers at 7 ref:

http://www.tf2outpost.com/trade/23122726 - Young

Final words: There are many sellers/sales at 6 ref. Some of those sales can be considered quicksells, but it's the most common trading point.

Feel free to support/counter this suggestion. Any feedback is appreciated.