| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 6 |
3.5%
|
| 0 | 140 |
82.4%
|
|
| 1 | 2 |
1.2%
|
|
| 2 | 4 |
2.4%
|
|
| 3 | 2 |
1.2%
|
|
| 4 | 2 |
1.2%
|
|
| 5 | 1 |
0.6%
|
|
| 6 | 2 |
1.2%
|
|
| 7 | 1 |
0.6%
|
|
| 9 | 1 |
0.6%
|
|
| 10 | 1 |
0.6%
|
|
| 11 | 1 |
0.6%
|
|
| 15 | 1 |
0.6%
|
|
| 20 | 1 |
0.6%
|
|
| 22 | 1 |
0.6%
|
|
| 23 | 1 |
0.6%
|
|
| 45 | 1 |
0.6%
|
|
| 60 | 1 |
0.6%
|
|
| 100 | 1 |
0.6%
|
|
| Sysmiss | 600 |