| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | None | 1 |
20%
|
| 1500 | 1 |
20%
|
|
| 2000 | 1 |
20%
|
|
| 10000 | 1 |
20%
|
|
| 60000 | 1 |
20%
|
|
| Sysmiss | 755 |