| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 2500 | 1 |
3%
|
|
| 5500 | 23 |
69.7%
|
|
| 6000 | 1 |
3%
|
|
| 6500 | 1 |
3%
|
|
| 8000 | 2 |
6.1%
|
|
| 9001 | 1 |
3%
|
|
| 10500 | 1 |
3%
|
|
| 12000 | 1 |
3%
|
|
| 15000 | 2 |
6.1%
|
|
| Sysmiss | 130 |