Many Google Webmaster Tools users are complaining about not being able to see their "Top Search Queries" report for a week's worth of time. If you go to Google Webmaster Tools, then go to Statistics, and then click on Top Search Queries, you will see an error that reads, "Data is not available at this time." Here is a screen capture:
Do note that Google is aware of this issue and hopes to have it resolved in a few days. Googler, JohnMu, "stickied" a Google Groups thread and said:
We're aware of this problem and working on resolving it.
I was hoping it would have been resolved for everyone already, but it looks like it might be a few more days until the data is available for all sites.
Thanks for your patience!
So just give it a bit more time.