| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 158 |
81.9%
|
|
| 1 | 2 |
1%
|
|
| 2 | 6 |
3.1%
|
|
| 3 | 2 |
1%
|
|
| 4 | 2 |
1%
|
|
| 5 | 4 |
2.1%
|
|
| 6 | 1 |
0.5%
|
|
| 7 | 1 |
0.5%
|
|
| 10 | 6 |
3.1%
|
|
| 12 | 1 |
0.5%
|
|
| 15 | 1 |
0.5%
|
|
| 20 | 1 |
0.5%
|
|
| 50 | 5 |
2.6%
|
|
| 90 | 2 |
1%
|
|
| 95 | 1 |
0.5%
|
|
| Sysmiss | 49 |