I've written a simple script to get these stats out of a level:

FileName, date, LevelName, Tileset, Music, Next Level, Layer 4 Width, Layer 4 Height

Now that I have this information for my 1.23 level cache it's time to play a game! Guess the overall statistics on the following:

1. What are the 5 most common tilesets?
2. What are the 5 most common music files?
3. What year has the most number of levels?
4. What month has the most number of levels?
5. What's the most common level size (x,y)?
6. What's the most common level name?
7. What's the smallest level area?
8. What's the largest level area?

Note that I'm getting statistics from my 1.23 jj2 level cache. Here's an old version: http://www.jazz2online.com/jcf/showthread.php?t=17060

Results will be posted in a day or two so make your predictions soon! And if anyone wants the code for getting raw levels data let me know and I can give it to you.