Aggregation on search tabular results

If I'm looking at a tabular results of a search, it would be extremely useful to be able to aggregate on the different dimensions (user, path, revision) and see aggregated statistics that I can drill into.

Use case here is "show me all changes last year organized by user" and then I can drill down into the branches or paths or revisions to find out more details when I've identified the top 10 code deleters.