| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Productive | 24 | 24 |
44.7%
|
| 2 | Non-productive | 19 | 19 |
34.6%
|
| 3 | Both types | 12 | 11 |
20.6%
|
| 9 | Missing | 0 | 0 | |
| Sysmiss | 2728 | 2729 |