| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 5 |
0.5%
|
| 2 | 1 to 2 | 4 |
0.4%
|
| 3 | 13 or more | 1 |
0.1%
|
| 4 | Don't know | 0 |
0%
|
| 9 | Unspecified | 988 |
99%
|