PHP-WebStatus Monitor

Hi there,
you are doing a great job with this tool. however, the
statistics are quite bad and not very easy to understand.
My main question now is, if I choose the site
statistics only the last 5 days are shown and the
average of what?
The last 5 days or is this the avarage since the site
is observed? It would be great to have the averages of
the last week, last month and last year (if avaiable).
I could code it myself, but I don't know how open this
project is...

Thank you in advance...
Tristan Hauser