Make available additional information on activity

[kineticsquid]

trafficstars

Can we get additional information about publishers and activity through the /admin API. I'm looking for the most active publishers, number of extensions and number of versions/updates. Also, what are the most downloaded extensions. If the number of results can be configured by a query parameter, great, but if that results in performance concerns, it's fine to have a fixed limit.

Finally, can we get the results as JSON, in addition to CSV?