| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 1 |
0.6%
|
| -9 | Don't know (spontaneous) | 2 |
1.2%
|
| 0 | 109 |
67.3%
|
|
| 1 | 6 |
3.7%
|
|
| 2 | 6 |
3.7%
|
|
| 3 | 4 |
2.5%
|
|
| 4 | 5 |
3.1%
|
|
| 5 | 5 |
3.1%
|
|
| 6 | 5 |
3.1%
|
|
| 7 | 2 |
1.2%
|
|
| 8 | 1 |
0.6%
|
|
| 10 | 6 |
3.7%
|
|
| 14 | 1 |
0.6%
|
|
| 15 | 2 |
1.2%
|
|
| 20 | 2 |
1.2%
|
|
| 30 | 1 |
0.6%
|
|
| 35 | 1 |
0.6%
|
|
| 50 | 1 |
0.6%
|
|
| 60 | 1 |
0.6%
|
|
| 200 | 1 |
0.6%
|
|
| Sysmiss | 198 |