Classic SOE Overnerf

[Bumamgar]

Chicanery: The base formula on that page are in effect here on p1999.

Keep in mind, however, that there is a fairly significant reduction in the XP awarded if you are killing light blue mobs. Also, there are zone XP modifiers in place.

So while that chart provides a very good guideline, the exact count of mobs per level will vary somewhat, depending on zone modifiers and the level difference between the player and the mobs being farmed.