| Code | Definition | Number of Accessions |
| 1 | very low 100,0-95,0 % organs with symptoms | 8 |
| 2 | 95,0-85,1 % organs with symptoms | 2 |
| 3 | low 85,0-70,1 % organs with symptoms | 12 |
| 4 | 70,0-55,1 % organs with symptoms | 7 |
| 5 | medium 55,0-40,1 % organs with symptoms | 20 |
| 6 | 40,0-25,1 % organs with symptoms | 4 |
| 7 | high 25,0-10,1 % organs with symptoms | 8 |
| 8 | 10,0- 3,1 % organs with symptoms | 1 |
| 9 | very high 3,0- 0,0 % organs with symptoms | 3 |