Toolbar
PR is exported data from around July 26.
So the
PR your seeing is from around then. If you use G analytics then you can have a look at the crawl ststs (I think thats the page) and see your distribution of
PR across your pages.
Low = 1-4
Medium = 5-7
High = 8-10
(well that's what's generally accepted)
I reckon this data is far 'fresher' than toolbar.