| Code | Definition | Number of Accessions |
| 1 | very low ≤ 15,5 (%) | 2 |
| 2 | very low to low > 15,5 ≤ 17 (%) | 11 |
| 3 | low > 17 ≤ 18,5 (%) | 4 |
| 4 | low to intermediate > 18,5 ≤ 20 (%) | 6 |
| 5 | intermediate > 20 ≤ 21,5 (%) | 3 |
| 6 | intermediate to high > 21,5 ≤ 23 (%) | 3 |
| 8 | high to very high > 24,5 ≤ 26 (%) | 2 |