| Value | Category | Cases | |
|---|---|---|---|
| -9 | don’t know | 0 |
0%
|
| 1 | export processing zone | 3 |
2%
|
| 2 | other industrial zone | 9 |
6%
|
| 3 | neither of the above | 138 |
92%
|
| Sysmiss | 361 |