| | 2009 | | | | Rank | Provinces | Offices | % | | 1 | Amnat Charoen | 8 | 0.14 | | 2 | Nong Bua Lam Phu | 11 | 0.19 | | 3 | Mukdahan | 12 | 0.21 | | 4 | Nan | 13 | 0.22 | | 5 | Satun | 13 | 0.22 | | 6 | Uthai Thani | 13 | 0.22 | | 7 | Mae Hong Son | 14 | 0.24 | | 8 | Nakhon Nayok | 14 | 0.24 | | 9 | Ang Thong | 15 | 0.26 | | 10 | Ranong | 15 | 0.26 | | 11 | Yasothon | 15 | 0.26 | | | Whole Kingdom | 5,805 | 100 |
| | | 2010 | | | | Rank | Provinces | Offices | % | | 1 | Amnat Charoen | 12 | 0.20 | | 2 | Mukdahan | 12 | 0.20 | | 3 | Nong Bua Lam Phu | 12 | 0.20 | | 4 | Uthai Thani | 12 | 0.20 | | 5 | Nan | 13 | 0.22 | | 6 | Mae Hong Son | 14 | 0.23 | | 7 | Nakhon Nayok | 14 | 0.23 | | 8 | Ang Thong | 15 | 0.25 | | 9 | Ranong | 15 | 0.25 | | 10 | Satun | 15 | 0.25 | | | Whole Kingdom | 5,977 | 100 |
| | | 2011 | | | | Rank | Provinces | Offices | % | | 1 | Amnat Charoen | 12 | 0.19 | | 2 | Mukdahan | 12 | 0.19 | | 3 | Nong Bua Lam Phu | 13 | 0.21 | | 4 | Uthai Thani | 13 | 0.21 | | 5 | Mae Hong Son | 14 | 0.23 | | 6 | Ang Thong | 15 | 0.24 | | 7 | Nakhon Nayok | 15 | 0.24 | | 8 | Nan | 15 | 0.24 | | 9 | Satun | 15 | 0.24 | | 10 | Pattani | 16 | 0.26 | | 11 | Ranong | 16 | 0.26 | | 12 | Sing Buri | 16 | 0.26 | | | Whole Kingdom | 6,201 | 100 |
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