Problem with resource availability graph in the Resource Center in Project Web App

Hi,

I have a problem with the graphs in the Project Web App Resource Center - Resource Availability.
They don't show the time spent on projects, only the non-project time.

For exemple: On week 1, a resource worked 37 hours on projects, and 3 hours on admin tasks. The timesheets of that resource has been approved, but I only see the 3 hours done in admin tasks on the different graphs (resource utilization, work by resource...etc).

Why?

Thank you for your help!