| Value | Category | Cases | |
|---|---|---|---|
| 1 | Use only | 44 |
57.1%
|
| 2 | Production only | 5 |
6.5%
|
| 3 | Both use and produce | 26 |
33.8%
|
| 98 | Don't know | 2 |
2.6%
|
| Sysmiss | 41935 |