Listing down relavant trades

http://www.tf2outpost.com/trade/15567366 - 1.66, 1 day

http://www.tf2outpost.com/trade/15578519 - sold 2 ref

http://www.tf2outpost.com/trade/15580301 - sold 2 ref

http://www.tf2outpost.com/trade/15592111 - 2 ref

http://www.tf2outpost.com/trade/15614552 - 2 ref

http://www.tf2outpost.com/trade/15442441 - willing to do 2 ref

http://www.tf2outpost.com/trade/15599164 - sold 2.33

http://www.tf2outpost.com/trade/15612281 - 2.66

http://www.tf2outpost.com/trade/15615368 - 2.66

http://www.tf2outpost.com/trade/15489529 - offered 2.66

http://www.tf2outpost.com/trade/15546469 - offered 2.66

http://www.tf2outpost.com/trade/15431675 - offered 2 craft hats

http://www.tf2outpost.com/trade/15493317 - 2.66, 5 days

http://www.tf2outpost.com/trade/15614552 - 3 ref

http://www.tf2outpost.com/trade/15602758 - offered 3 ref

http://www.tf2outpost.com/trade/15442477 - offered 3 ref, 3.66 retracted

http://www.tf2outpost.com/trade/15477280 - offered 3 ref

http://www.tf2outpost.com/trade/15570650 - 3 ref

http://www.tf2outpost.com/trade/15523034 - 3.66 4 days

http://www.tf2outpost.com/trade/15431717 - 4 ref 1 week

http://www.tf2outpost.com/trade/15538747 - 4 ref, 3 days

http://www.tf2outpost.com/trade/15584122 - 5.33, 1 day

http://www.tf2outpost.com/trade/15454361 - 1 key, 6 days

http://www.tf2outpost.com/trade/15488628 - offered 9 ref, outlier

Feel free to counter / support my proof.