You can read the document - COM(2009) 331 final - here.
It makes interesting reading. One would get the impression from reading the judgments of the Court of First Instance that the Commission refuses access to documents. That of course would be a false impression as only refusals are challenged. It appears from the 2008 report that the total number of applications for public access (5197) has increased by over a thousand in one year. The number of positive responses granting access has also increased in 2008: 82.68% of the responses were positive (as compared to 72.71 % in 2007).
As in 2007, roughly a third of the requests came from academics.
We noted last year's report is available here.