Ron, this is the best idea I have for you. Maybe someone else will have a better (read: easier) idea. But it's the best I can come up with.
Go to Link Removed.
Click on "Advanced Search".
When the form comes up, look on the right side near the top for these fields:
Release Dates
From:__________ mm/dd/yy
To:____________ mm/dd/yy
Fill in the dates with the first month (01/01/01 - 01/31/01) and submit. There's January. Repeat for February, then Martch, etc. You can even sort the results in order of release date by clicking on the words "Release Date" in the column header of the results.
If you don't want to put in 12 queries, you can do the entire year at once and then pick through the results yourself.
Playing with this tool in other ways will get you ahold of interesting information! Good luck,