| | 2010 | | | Rank | Provinces | Number | | 1 | Bangkok | 11 | | 2 | Phrae | 10 | | 3 | Sing Buri | 10 | | 4 | Chai Nat | 10 | | 5 | Lamphun | 10 | | 6 | Ang Thong | 9 | | 7 | Lampang | 9 | | 8 | Phayao | 9 | | 9 | Suphan Buri | 8 | | 10 | Phichit | 8 | | | Whole Kingdom | 6.49 |
| | | 2011 | | | Rank | Provinces | Number | | 1 | Bangkok | 11 | | 2 | Phrae | 10 | | 3 | Sing Buri | 10 | | 4 | Chai Nat | 9 | | 5 | Ang Thong | 9 | | 6 | Lampang | 9 | | 7 | Lamphun | 9 | | 8 | Uttaradit | 8 | | 9 | Nakhon Nayok | 8 | | 10 | Phichit | 8 | | | Whole Kingdom | 6.54 |
| | | 2012 | | | Rank | Provinces | Number | | 1 | Bangkok | 11 | | 2 | Sing Buri | 10 | | 3 | Chai Nat | 10 | | 4 | Phrae | 10 | | 5 | Ang Thong | 10 | | 6 | Lamphun | 9 | | 7 | Lampang | 9 | | 8 | Phayao | 9 | | 9 | Nakhon Nayok | 9 | | 10 | Samut Songkhram | 8 | | | Whole Kingdom | 6.57 |
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