API GetNumBattlefieldStats

Appears to return the number of columns in the battleground/field scoreboard, other than the common ones (Killing Blows, Kills, Deaths, Bonus Honour):
 local numStats = GetNumBattlefieldStats()
==Parameters==
===Returns===
:;numStats: - Number of columns available for the battleground (2 for Warsong Gulch and Arathi Basin, 7 for Alterac Valley)