help with table (savedvariabiles)

[Taet]

i need this table format :

Data={ --[mapID] [197]={ -- [npcID] = XXX [91783]=1.94175, [95861]=1.94175, [100216]=1.94175, }, [199]={ [98370]=1.33333, [98368]=1.33333, [98366]=1.33333, }, }

How i add new "mapID" , or "npcID with value" to existing mapID.

I trying with:

local mapID, npcID = 999, 2222 local tmp = {[mapID] = {[npcID] = 1.1111}} tinsert(Data, tmp)

This dont insert to existing mapID but create new array with to same mapID, and tinsert(Data[mapID], .... bad argument #1