| | 2008 | | | Rank | Provinces | Number | | 1 | Mae Hong Son | 4 | | 2 | Amnat Charoen | 7 | | 3 | Yasothon | 14 | | 4 | Trat | 18 | | 5 | Mukdahan | 21 | | 6 | Nakhon Nayok | 21 | | 7 | Samut Songkhram | 21 | | 8 | Uthai Thani | 21 | | 9 | Loei | 22 | | 10 | Nong Bua Lam Phu | 22 | | 11 | Ranong | 22 | | 12 | Satun | 22 | | | Whole Kingdom | 10,063 |
| | | 2009 | | | Rank | Provinces | Number | | 1 | Mae Hong Son | 4 | | 2 | Buri Ram | 9 | | 3 | Uttaradit | 9 | | 4 | Amnat Charoen | 11 | | 5 | Ranong | 21 | | 6 | Samut Songkhram | 21 | | 7 | Uthai Thani | 22 | | 8 | Ang Thong | 24 | | 9 | Satun | 25 | | 10 | Nong Bua Lam Phu | 27 | | 11 | Trat | 27 | | | Whole Kingdom | 11,529 |
| | | 2010 | | | Rank | Provinces | Number | | 1 | Amnat Charoen | 11 | | 2 | Mae Hong Son | 11 | | 3 | Uthai Thani | 25 | | 4 | Ranong | 27 | | 5 | Samut Songkhram | 28 | | 6 | Ang Thong | 32 | | 7 | Satun | 33 | | 8 | Phangnga | 34 | | 9 | Trat | 35 | | 10 | Nong Bua Lam Phu | 36 | | | Whole Kingdom | 13,534 |
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