What are the parenthetical numbers in the combat HUD?

During combat, the Wizardry 8 HUD displays numbers beside each enemy group's name, like so:

6 Soldier Ants ( 0 / 4 / 0)
3 Soldier Ants ( 2 / 1 / 1 )

What do the numbers in the parentheses mean?

This thread speculates they're "number total/number in target range/number visible," which sounds reasonable but doesn't match my experience in the game. The above example is taken directly from a fight, and obviously the first number isn't the total in the group (though often that first number does match the total). The middle number sometimes matches targets in range of my queued action, but doesn't seem to play nice with AoE effects so I don't think that's exactly the situation. The last number being the number visible on the screen is consistently born out in play, though.

The manual is strangely quiet on this.