| Code | Definition | Number of Accessions |
| 1 | LAX | 418 |
| 2 | (1 = LAX, 9 = VERY DENSE) | 1111 |
| 3 | (1 = LAX, 9 = VERY DENSE) | 7788 |
| 4 | (1 = LAX, 9 = VERY DENSE) | 18322 |
| 5 | (1 = LAX, 9 = VERY DENSE) | 10965 |
| 6 | (1 = LAX, 9 = VERY DENSE) | 6101 |
| 7 | (1 = LAX, 9 = VERY DENSE) | 4891 |
| 8 | (1 = LAX, 9 = VERY DENSE) | 1284 |
| 9 | VERY DENSE | 524 |