Headmen salary increase - Update

The Nation published another article on the salary increase for the headmen since now a 100% rise in two steps is approved by the cabinet. The reason why I write on this the second time is simply that with this article comes a table with all the posts concerned and their current (and proposed) salary.

Adding to that table the Thai names for these posts it is like follows:

English	Thai	Romanized Thai	Salary
Subdistrict headman	กำนัน	Kamnan	฿ 5,000
Village headman	ผู้ใหญ่บ้าน	Phu Yai Ban	฿ 4,000
Subdistrict doctor	แพทย์ประจำตำบล	Phaet Pracham Tambon	฿ 2,500
Deputy subdistrict headman	สารวัตรกำนัน	Sanwat Kamnan	฿ 2,500
Deputy village headman	ผู้ช่วยผู้ใหญ่บ้าน	Phu Chuai Phu Yai Ban	฿ 2,500

The whole measure will cost the government 10 million Baht, as a total of 270,000 officials will get a raise. As there are nearly 75,000 administrative villages and 7,255 subdistricts (as of December 2007), and ignoring the fact that some of these entities don't have a headman anymore because they belong to a town or city municipality, this number means there are in medium 3 officials per entity. So there must be usually two deputy (assistant) village headmen.

I am not sure what The Nation means by "According to the salary revised on April 1, 2006" - it cannot mean that the last raise was in 2006 since Bangkok Post says that there was no raise for a decade.