| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 8 |
21.6%
|
| -7 | Does not apply (spontaneous) | 0 |
0%
|
| 1 | 1 |
2.7%
|
|
| 6 | 1 |
2.7%
|
|
| 20 | 1 |
2.7%
|
|
| 24 | 1 |
2.7%
|
|
| 30 | 4 |
10.8%
|
|
| 60 | 2 |
5.4%
|
|
| 72 | 8 |
21.6%
|
|
| 90 | 3 |
8.1%
|
|
| 98 | 1 |
2.7%
|
|
| 120 | 4 |
10.8%
|
|
| 180 | 1 |
2.7%
|
|
| 365 | 1 |
2.7%
|
|
| 500 | 1 |
2.7%
|
|
| Sysmiss | 982 |