| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 3 |
1.6%
|
| 0 | 129 |
70.9%
|
|
| 1 | 2 |
1.1%
|
|
| 2 | 7 |
3.8%
|
|
| 3 | 4 |
2.2%
|
|
| 4 | 3 |
1.6%
|
|
| 5 | 4 |
2.2%
|
|
| 7 | 1 |
0.5%
|
|
| 8 | 6 |
3.3%
|
|
| 9 | 1 |
0.5%
|
|
| 10 | 1 |
0.5%
|
|
| 12 | 1 |
0.5%
|
|
| 15 | 1 |
0.5%
|
|
| 16 | 1 |
0.5%
|
|
| 19 | 3 |
1.6%
|
|
| 20 | 1 |
0.5%
|
|
| 25 | 1 |
0.5%
|
|
| 28 | 1 |
0.5%
|
|
| 29 | 1 |
0.5%
|
|
| 41 | 1 |
0.5%
|
|
| 50 | 5 |
2.7%
|
|
| 97 | 1 |
0.5%
|
|
| 100 | 1 |
0.5%
|
|
| 120 | 1 |
0.5%
|
|
| 150 | 1 |
0.5%
|
|
| 176 | 1 |
0.5%
|
|
| Sysmiss | 632 |