| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 24 |
1%
|
| 2 | 1 or 2 | 230 |
9.7%
|
| 3 | 3 to 5 | 1020 |
42.9%
|
| 4 | 6 to 8 | 704 |
29.6%
|
| 5 | 9 or 10 | 294 |
12.4%
|
| 99 | I don't know | 108 |
4.5%
|
| Sysmiss | 947 |