| Code | Definition | Number of Accessions |
| 1 | very low ≤ 19,5 (%) | 1 |
| 2 | very low to low > 19,5 ≤ 21 (%) | 5 |
| 3 | low > 21 ≤ 22,5 (%) | 7 |
| 4 | low to intermediate > 22,5 ≤ 24 (%) | 6 |
| 5 | intermediate > 24 ≤ 25,5 (%) | 3 |
| 6 | intermediate to high > 25,5 ≤ 27 (%) | 1 |
| 8 | high to very high > 28,5 ≤ 30 (%) | 1 |