Lights data in "stats" tool ?.

We are working on Arch-Viz solutions. In the process of performance measurement and tuning we would like to understand related relevant data. The "stats" tool provides very valuable data such as "Tris" (triangles), "verts" (Vertices) etc.

It's our understanding that in addition to "geometry" data, "lights" also factor heavily into the computational load at any given time.

We could not find any relevant data w.r.t "lights" in the 'stats' results.

Is there anything else that we missed ?.

We are currently outputting data from scripting code. (# of lights, #type of lights, critical parameters such as "range", "spot angle" etc.

Any other pointers in this direction will be appreciated.

Thanks
Satish