Since no one has answered, I'll give you a guess. By spotlight cattle I assume you mean all cattle that make the sale? For the American Royal the cattle average was I'm guessing around 5,000(not including Grand and Reserve), if I find my auction sheet I can get you an exact figure, but no luck so far.
If I remember correctly, Louisville only sells Grand and Reserve.
KC has made a huge effort to improve the sale. There will be a couple that sell a lot higher, but that is because of a local connection or the work the kid has done prior to the sale getting sponsors on their own. The average price pretty much goes from (other than the top 2) top to bottom they stay pretty close.