| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 to 5 | 1965 |
65%
|
| 2 | 6 or more but not all | 296 |
9.8%
|
| 3 | all | 47 |
1.6%
|
| 4 | none | 607 |
20.1%
|
| 77 | don't know | 82 |
2.7%
|
| 99 | refused | 24 |
0.8%
|