Wednesday, December 10, 2008

Tambon creations in the 1970s

I finished the subdistrict creations in the 1970s faster than expected, also thanks to the fact that the mean annual number of creations was lower than since 1978.

There are a total of 409 announcements, which cover 794 newly created subdistricts. Sorted by year the subdistrict announced are as follows:
  • 1979: 153 subdistricts in 76 announcements
  • 1978: 111 subdistricts in 60 announcements
  • 1977: 50 subdistricts in 37 announcements
  • 1976: 62 subdistricts in 44 announcements
  • 1975: 63 subdistricts in 27 announcements
  • 1974: 50 subdistricts in 35 announcements
  • 1973: 55 subdistricts in 34 announcements
  • 1972: 48 subdistricts in 34 announcements
  • 1971: 102 subdistricts in 34 announcements
  • 1970: 100 subdistricts in 28 announcements
The province in which most subdistricts were created is Nakhon Ratchasima with 49. The highest number of muban in a newly created subdistrict was 20 with the creation of Wang Muang (ตำบลวังม่วง), Muak Lek district, Saraburi province. In four cases a new subdistrict consisted of just two muban - Ruam Chit (ตำบลร่วมจิต), Mueang Uttaradit district, Uttaradit province; Sap Takhian (ตำบลซับตะเคียน) and Chai Narai (ตำบลชัยนารายณ์), Chai Badan district, Lopburi province; Tha Sawan (ตำบลท่าสวรรค์), Mueang Loei district, Loei province. The most common number of muban in a new subdistrict was 6, a bit lower than the mean value of 7.6, with a standard deviation is 0.9.

Counting the number of parent subdistricts shows that in most cases it was just a single subdistrict which was split.
  • 1 parent - 703 times
  • 2 parents - 66 times
  • 3 parents - 24 times
  • 4 parents - 1 times

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