Proof below.

Sales:

http://www.tf2outpost.com/trade/15068593

-b/o of 5.5 buds, 6.5 buds in unusuals

-sold for blizzardy modest (3.375)+bubbling milkman (0.945)+19 keys (1.1)+s. widow

-seller's bp:

http://backpack.tf/id/76561198093632344?time=1381906800 blizzardy modest+bubbling milkman+19 keys+s. widow in new items

-~5.5 buds

http://www.tf2outpost.com/trade/15067850

-cosa+3 sweets (0.43), sold/bought for anti-freeze hoodie: http://www.tf2outpost.com/trade/15103131

-sweets: http://www.tf2outpost.com/trade/15176524

-~6.4 buds

http://www.tf2outpost.com/trade/14458678

-sold/bought for this kill a watt robin, nothing was added: http://www.tf2outpost.com/trade/14870092

-unpriced but definitely outlier

http://www.tf2outpost.com/trade/14935103

-wanted 6 buds, 7.5 buds in unusuals

-cosa+miami cold killer (unpriced, gifted by pink taco), bought ge modest here:

http://www.tf2outpost.com/trade/14921697

Current trades:

http://www.tf2outpost.com/trade/15111691

-offers

Priced sales: 5.5, 6.4

Only priced sales I could find, pretty hard to track. Original prices and unusual overpay were used. Please vote accordingly.