| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
0.7%
|
| 1 | 274 |
62.1%
|
|
| 2 | 85 |
19.3%
|
|
| 3 | 38 |
8.6%
|
|
| 4 | 13 |
2.9%
|
|
| 5 | 11 |
2.5%
|
|
| 6 | 3 |
0.7%
|
|
| 7 | 2 |
0.5%
|
|
| 8 | 1 |
0.2%
|
|
| 10 | 3 |
0.7%
|
|
| 12 | 3 |
0.7%
|
|
| 48 | 1 |
0.2%
|
|
| 52 | 1 |
0.2%
|
|
| 90 | 1 |
0.2%
|
|
| 99 | 1 |
0.2%
|
|
| 100 | 1 |
0.2%
|
|
| Sysmiss | 506 |