This link have detailed PERM information:
http://www.flcdatacenter.com/CasePerm.aspx
I think if someone wants to take specific perm applications for calculation like CERTIFIED, CERTIFIED-EXPIRED and not DENIED or WITHDRAWN can use this link
http://www.flcdatacenter.com/CasePerm.aspx.
It is interesting that you can find company names and sponsored people in this
database. With job titles you can even guess who they are. I found mine(using my perm case number A-xxxxx-xxxxx), my job title being so specific.
The important thing I have notice is my perm was filed in Nov-2007 and it was listed under '2008MDB Text' not under '2007MDB Text'. I guess it may be listed in 2008 because my perm got approved in Jan-2008.