PokerTracker Stats-What range is good

[Zophar]

I'm familiar with Hold'em numbers(VP$IP,PFR%, etc.), but what is considered a good range for O8, specifically PLO8 6-max? I'd expect VP$IP to be a bit higher, but aside from that I'm not so sure. I'm currently about 31% VP$IP and at about 9% PFR w/an aggression factor of 1.6. Any input is appreciated.