| | 2004 | | | Rank | Provinces | case | | 1 | Yasothon | 12 | | 2 | Amnat Charoen | 17 | | 3 | Mae Hong Son | 17 | | 4 | Nakhon Phanom | 20 | | 5 | Mukdahan | 22 | | 6 | Nan | 23 | | 7 | Trat | 24 | | 8 | Nong Bua Lam Phu | 27 | | 9 | Uthai Thani | 27 | | 10 | Chai Nat | 28 | | | Whole Kingdom | 15,806 |
| | | 2005 | | | Rank | Provinces | case | | 1 | Yasothon | 7 | | 2 | Nong Bua Lam Phu | 11 | | 3 | Amnat Charoen | 16 | | 4 | Nan | 16 | | 5 | Satun | 18 | | 6 | Nakhon Phanom | 19 | | 7 | Mae Hong Son | 22 | | 8 | Phrae | 24 | | 9 | Sukhothai | 24 | | 10 | Trat | 27 | | | Whole Kingdom | 17,497 |
| | | 2006 | | | Rank | Provinces | case | | 1 | Mae Hong Son | 9 | | 2 | Nan | 12 | | 3 | Nong Bua Lam Phu | 13 | | 4 | Sukhothai | 14 | | 5 | Amnat Charoen | 17 | | 6 | Nakhon Phanom | 17 | | 7 | Phayao | 19 | | 8 | Yasothon | 19 | | 9 | Mukdahan | 20 | | 10 | Satun | 22 | | | Whole Kingdom | 20,467 |
| | |
