| Value | Category | Cases | |
|---|---|---|---|
| 1 | Red River Delta | 290 |
28.1%
|
| 3 | North and South Central Coast | 242 |
23.5%
|
| 5 | South East | 296 |
28.7%
|
| 6 | Mekong River Delta | 203 |
19.7%
|
| Sysmiss | 1 |