0.22 doesnt happen. Hard to find any sales for h. souls, looked a few times. There are no other trades, ecxept sets or swapping

http://www.tf2outpost.com/trade/12644139 - sold a few up to 1ref, price changed

http://www.tf2outpost.com/trade/13051861 - sold for 0.44

http://www.tf2outpost.com/trade/13337867 - sold for 0.33

http://www.tf2outpost.com/trade/10776864 - sold for 0.33

http://www.tf2outpost.com/trade/5703236 - stone aged, also 0.33 offered yesterday

http://bazaar.tf/trade/216767 - added for 0.33

http://www.tf2outpost.com/trade/13047877 - 0.33 c/o

http://www.tf2outpost.com/trade/13247007 - 0.22 offered, no reaction

http://www.tf2outpost.com/trade/12025069 - seemingly sold sets for 4ref

http://www.tf2outpost.com/trade/13346989 - bought for 0.33, got all 9

found no more buyers, except unsuccessful for 0.11