| Value | Category | Cases | |
|---|---|---|---|
| 0 | 104 |
39.2%
|
|
| 1 | If none, record '00' | 118 |
44.5%
|
| 2 | 31 |
11.7%
|
|
| 3 | 9 |
3.4%
|
|
| 4 | 2 |
0.8%
|
|
| 8 | 1 |
0.4%
|
|
| Sysmiss | 949 |