It's supposed to be rare. If he changed the rates, 15 items would be coming in-game everyday (currently about 6-7 come in-game, granted most are things like dragon sword) and decimating the economy. You're an ironman and you signed up for this, deal with it.
Edit: You're still posting a bugged version of your loot log.
Unbugged version (before last update):
Bugged version (post update):
