| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
1.6%
|
| -7 | No internal shipments made (does not apply) | 100 |
26.5%
|
| 0 | No losses | 256 |
67.9%
|
| 1 | 4 |
1.1%
|
|
| 2 | 1 |
0.3%
|
|
| 3 | 1 |
0.3%
|
|
| 5 | 5 |
1.3%
|
|
| 7 | 2 |
0.5%
|
|
| 8 | 1 |
0.3%
|
|
| 10 | 1 |
0.3%
|