| Code | Definition | Number of Accessions |
| 1 | weak/slow | 44 |
| 2 | (1= weak/slow, 9= great/fast) | 56 |
| 3 | (1= weak/slow, 9= great/fast) | 52 |
| 4 | (1= weak/slow, 9= great/fast) | 74 |
| 5 | (1= weak/slow, 9= great/fast) | 79 |
| 6 | (1= weak/slow, 9= great/fast) | 79 |
| 7 | (1= weak/slow, 9= great/fast) | 78 |
| 8 | (1= weak/slow, 9= great/fast) | 59 |
| 9 | great/fast | 18 |