| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 1 |
0.5%
|
| 1 | 16 |
7.2%
|
|
| 2 | 26 |
11.7%
|
|
| 3 | 15 |
6.8%
|
|
| 4 | 25 |
11.3%
|
|
| 5 | 5 |
2.3%
|
|
| 6 | 11 |
5%
|
|
| 7 | 2 |
0.9%
|
|
| 8 | 36 |
16.2%
|
|
| 9 | 7 |
3.2%
|
|
| 10 | 26 |
11.7%
|
|
| 11 | 3 |
1.4%
|
|
| 12 | 23 |
10.4%
|
|
| 13 | 3 |
1.4%
|
|
| 14 | 14 |
6.3%
|
|
| 15 | 5 |
2.3%
|
|
| 16 | 4 |
1.8%
|
|
| Sysmiss | 155 |