| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 1 |
1%
|
| 0 | 28 |
28.6%
|
|
| 1 | 20 |
20.4%
|
|
| 2 | 10 |
10.2%
|
|
| 3 | 7 |
7.1%
|
|
| 4 | 6 |
6.1%
|
|
| 5 | 6 |
6.1%
|
|
| 6 | 2 |
2%
|
|
| 7 | 1 |
1%
|
|
| 8 | 2 |
2%
|
|
| 9 | 1 |
1%
|
|
| 10 | 4 |
4.1%
|
|
| 15 | 1 |
1%
|
|
| 20 | 1 |
1%
|
|
| 21 | 1 |
1%
|
|
| 22 | 1 |
1%
|
|
| 23 | 1 |
1%
|
|
| 26 | 1 |
1%
|
|
| 35 | 1 |
1%
|
|
| 110 | 1 |
1%
|
|
| 130 | 1 |
1%
|
|
| 145 | 1 |
1%
|
|
| Sysmiss | 707 |