| Value | Category | Cases | |
|---|---|---|---|
| -8 | Don't know | 8 |
20.5%
|
| 0 | 17 |
43.6%
|
|
| 70 | 1 |
2.6%
|
|
| 100 | 1 |
2.6%
|
|
| 120 | 1 |
2.6%
|
|
| 200 | 3 |
7.7%
|
|
| 250 | 1 |
2.6%
|
|
| 300 | 1 |
2.6%
|
|
| 500 | 4 |
10.3%
|
|
| 600 | 1 |
2.6%
|
|
| 1000 | 1 |
2.6%
|
|
| Sysmiss | 3573 |