weekly count of statistics per forum? unique members, total number of posts/new threa

[jilly]

I would like to get a new statistics function. I want a way to see the amount of activity on each forum in my board, once a week. I'd like a breakdown per forum of the following statistics:

How many unique posters on that forum per week
How many new threads started on the forum that week
how many new posts on the forum that week