Distribution of Values for
Spine number (SPINENUM)
| Code | Definition | Number of Accessions |
| 0 | None | 374 |
| 1 | (0 = None, 9 = Many) | 4 |
| 2 | (0 = None, 9 = Many) | 58 |
| 3 | Few | 376 |
| 4 | (0 = None, 9 = Many) | 113 |
| 5 | Intermediate | 378 |
| 6 | (0 = None, 9 = Many) | 138 |
| 7 | (0 = None, 9 = Many) | 958 |
| 8 | (0 = None, 9 = Many) | 9 |
| 9 | Many | 1 |