| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 5 |
5%
|
|
| 1 | 36 |
36%
|
|
| 2 | 18 |
18%
|
|
| 3 | 10 |
10%
|
|
| 4 | 11 |
11%
|
|
| 5 | 4 |
4%
|
|
| 6 | 2 |
2%
|
|
| 8 | 3 |
3%
|
|
| 10 | 5 |
5%
|
|
| 15 | 2 |
2%
|
|
| 30 | 3 |
3%
|
|
| 48 | 1 |
1%
|
|
| Sysmiss | 545 |