Group Exp Distribution?

[Dreadder]

Anyone know how group exp is handed out? I think on live it was changed to something along the lines of 2 people in a group gives a 20% bonus to exp and then split amongst the two would equal 60% for each. With 3 people it was maybe a 35% bonus then split amongst the 3 (not entirely sure on that one). Lastly I remember the last person in the group (6th) gave additional bonus to exp without adding anymore splitting. So a 6 person group would get more exp per kill per character than a 5 person. Like I said in the second sentence it was CHANGED to be like that well after Luclin, maybe even POK. Classic was not like that. That being said, how does it work on this server?