| Value | Category | Cases | |
|---|---|---|---|
| -8 | don't know | 1028 |
21.4%
|
| 0 | 3744 |
77.9%
|
|
| 10 | 1 |
0%
|
|
| 20 | 4 |
0.1%
|
|
| 30 | 1 |
0%
|
|
| 40 | 1 |
0%
|
|
| 50 | 6 |
0.1%
|
|
| 100 | 5 |
0.1%
|
|
| 120 | 1 |
0%
|
|
| 150 | 2 |
0%
|
|
| 200 | 5 |
0.1%
|
|
| 300 | 1 |
0%
|
|
| 400 | 1 |
0%
|
|
| 500 | 2 |
0%
|
|
| 1200 | 1 |
0%
|
|
| 1500 | 1 |
0%
|
|
| Sysmiss | 1515 |