This 191 page PDF has all the TAO as of October 4 2006, including the status (ขนาด), the year of creation, the area and the population (male, female and total). Sadly it seems there is only the PDF, and not a Excel file with the same data, which would be the much more natural way to share such a big table. So it took me quite some work to find a free PDF2Text converter to extract the text, and then make it into a spreadsheet myself. I don't know whether it was something going wrong during this conversion, but neither the area nor the population columns add up to the total values given in the PDF. And also for the three levels there are a few problems, because for 5 entries no level column is left blank, instead of 6272 small (เล็ก) TAO it only has 6271, and instead of 71 large (ใหญ่) only 67, only the 274 of middle (กลาง) level are all present. So one of the following five TAO must be a small one, while the other four must be large.
|Ban Na||บ้านนา||Mueang Chumphon||Chumphon||1996||162.14||7551|
|Laem Sai||แหลมทราย||Lang Suan||Chumphon||1997||20.83||3268|
|Ron Phibun||ร่อนพิบูลย์||Ron Phibun||Nakhon Si Thammarat||1996||96.02||19070|
|Ban Khok||บ้านโคก||Ban Khok||Uttaradit||1995||135.55||1927|
But even with these problems, that file is a good source of data, next thing to analyze is which level were the TAO upgraded since the creation of that document, does it have any large or middle TAO left at all?