What takes up my iTunes?

Right now, my iTunes library looks like this:

• 10,540 tracks
• 28.8 days of music
• 51.25 GB of music

These are the artists I have the most of. It's a good list:
1. The Beatles (207 songs)
2. Radiohead (157 songs)
3. Animal Collective (139 songs)
4. Paul Simon (118 songs)
5. Bright Eyes (80 songs)
6. Death Cab for Cutie (74 songs)
7. Panda Bear (70 songs)
8. Cat Power (68 songs)
9. Sigur Ros (62 songs)
10. The White Stripes (58 songs)