| 2011 | 2012 | |
|---|---|---|
| Louangphabang | 25 | 27 |
| Champasak | 16 | 12 |
| Vientiane Prefecture | 9 | 9 |
| Xiangkhoang | 8 | 8 |
| Bokèo | 3 | 4 |
| Khammouan | 2 | 4 |
| Savannakhét | 4 | 4 |
| Louang Namtha | 3 | 3 |
| Vientiane | 2 | 2 |
| Phôngsali | 1 | 1 |
| Salavan | 1 | 1 |
| Attapu | 0 | 0 |
| Bolikhamxai | 0 | 0 |
| Houaphan | 0 | 0 |
| Oudômxai | 0 | 0 |
| Xaignabouli | 0 | 0 |
| Xékong | 0 | 0 |