Thanks to JoXu for helping me with the range :D.

If you have any constructive criticism, support, or counter-proof, let me know below!

Buyers at 3.33 ref:

http://www.tf2outpost.com/trade/25150387

http://www.tf2outpost.com/trade/14387876

Sold at 3 ref (outlier):

http://www.tf2outpost.com/trade/25701677

Seller at 3.88 ref:

http://www.tf2outpost.com/trade/25250939 (31 in stock)

Sold at 4 ref:

http://www.tf2outpost.com/trade/25070260

• bp on 4/4: http://backpack.tf/profiles/76561198045775820?time=1428130800 (13 in stock)
• bp on 4/5: http://backpack.tf/profiles/76561198045775820?time=1428217200 (12 in stock)
• bp on 4/8: http://backpack.tf/profiles/76561198045775820?time=1428476400 (10 in stock)
• bp on 4/9: http://backpack.tf/profiles/76561198045775820?time=1428562800 (9 in stock)
• bp on 4/11: http://backpack.tf/profiles/76561198045775820?time=1428735600 (8 in stock)
• bp on 4/13: http://backpack.tf/profiles/76561198045775820?time=1428908400 (7 in stock)
• bp on 4/16: http://backpack.tf/profiles/76561198045775820?time=1429167600 (5 in stock)

http://www.tf2outpost.com/trade/25697880

Sold at 5 ref:

http://www.tf2outpost.com/trade/14464633

• bp on 4/8: http://backpack.tf/profiles/76561197967159739?time=1428476400 (5 in stock)
• bp on 4/9: http://backpack.tf/profiles/76561197967159739?time=1428562800 (4 in stock)
• bp on 4/13: http://backpack.tf/profiles/76561197967159739?time=1428908400 (3 in stock)

Seller at 5 ref:

http://www.tf2outpost.com/trade/24518158 (2 in stock)

Invalid:

http://www.tf2outpost.com/trade/25307921 (bot has none in stock since 4/1)