| | 2009 | | | Rank | Provinces | case | | 1 | Nan | 10 | | 2 | Mae Hong Son | 15 | | 3 | Amnat Charoen | 19 | | 4 | Phrae | 19 | | 5 | Nakhon Phanom | 20 | | 6 | Phayao | 20 | | 7 | Nong Bua Lam Phu | 22 | | 8 | Yasothon | 25 | | 9 | Uthai Thani | 28 | | 10 | Sukhothai | 29 | | | Whole Kingdom | 21,013 |
| | | 2010 | | | Rank | Provinces | case | | 1 | Nong Bua Lam Phu | 12 | | 2 | Mae Hong Son | 16 | | 3 | Nan | 19 | | 4 | Mukdahan | 24 | | 5 | Pangnga | 28 | | 6 | Samut Songkhram | 28 | | 7 | Yasothon | 29 | | 8 | Chaiyaphum | 30 | | 9 | Phichit | 30 | | 10 | Kamphaeng Phet | 31 | | 11 | Lampang | 31 | | 12 | Nakhon Phanom | 31 | | | Whole Kingdom | 19,446 |
| | | 2011 | | | Rank | Provinces | case | | 1 | Pangnga | 7 | | 2 | Uttaradit | 10 | | 3 | Nan | 11 | | 4 | Chai Nat | 13 | | 5 | Bueng Kan | 15 | | 6 | Mae Hong Son | 16 | | 7 | Mukdahan | 16 | | 8 | Nong Bua Lam Phu | 16 | | 9 | Phetchabun | 17 | | 10 | Uthai Thani | 17 | | | Whole Kingdom | 12,128 |
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