| Value | Category | Cases | |
|---|---|---|---|
| -99 | 5 |
2.5%
|
|
| 1 | Bangkok and vicinity | 168 |
83.6%
|
| 2 | Northern Thailand | 6 |
3%
|
| 3 | Northeastern Thailand | 7 |
3.5%
|
| 4 | Southern Thailand | 10 |
5%
|
| 5 | Central Thailand | 5 |
2.5%
|
| Sysmiss | 5 |