Multisite total page views per Site

Hi,

I need to Monitor (and save the data) pageviews on a per blog basis.

The data is for superadmin statistics and it doesn’t have to be updated live ( once a day is enough).

There is always the option to add +1 to the db on every pageload, But that would be unacceptable in terms of performance.

Is there any solution for that available?

Thanks,
Oren