| Value | Category | Cases | |
|---|---|---|---|
| 1 | Illness | 4121 |
20%
|
| 2 | Injury | 236 |
1.1%
|
| 3 | Both | 24 |
0.1%
|
| 4 | Neither | 16184 |
78.7%
|
| Sysmiss | 313 |