| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
12.1%
|
| 0 | 1 |
3%
|
|
| 50 | 1 |
3%
|
|
| 200 | 1 |
3%
|
|
| 300 | 2 |
6.1%
|
|
| 400 | 2 |
6.1%
|
|
| 900 | 3 |
9.1%
|
|
| 1500 | 2 |
6.1%
|
|
| 1600 | 1 |
3%
|
|
| 2500 | 1 |
3%
|
|
| 2850 | 1 |
3%
|
|
| 3000 | 2 |
6.1%
|
|
| 3200 | 1 |
3%
|
|
| 4500 | 2 |
6.1%
|
|
| 5000 | 1 |
3%
|
|
| 6000 | 2 |
6.1%
|
|
| 6600 | 1 |
3%
|
|
| 7500 | 1 |
3%
|
|
| 9000 | 4 |
12.1%
|
|
| Sysmiss | 521 |