| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 2 |
1.5%
|
| 0 | 52 |
38.8%
|
|
| 1 | 17 |
12.7%
|
|
| 2 | 24 |
17.9%
|
|
| 3 | 7 |
5.2%
|
|
| 4 | 2 |
1.5%
|
|
| 5 | 3 |
2.2%
|
|
| 6 | 5 |
3.7%
|
|
| 7 | 3 |
2.2%
|
|
| 8 | 2 |
1.5%
|
|
| 9 | 2 |
1.5%
|
|
| 10 | 6 |
4.5%
|
|
| 15 | 1 |
0.7%
|
|
| 18 | 1 |
0.7%
|
|
| 20 | 3 |
2.2%
|
|
| 35 | 1 |
0.7%
|
|
| 45 | 1 |
0.7%
|
|
| 71 | 1 |
0.7%
|
|
| 122 | 1 |
0.7%
|
|
| Sysmiss | 467 |