One of the antiquarian books I bought some time ago was one of the census data booklet of the 1960 census. While I personally would have preferred to get the one on Surat Thani, I guess the one I got on Chiang Mai might even be more interesting to my readers.
There are a total of 19 tables in the booklet, starting from the population numbers per district, the age structure, marriage status, place of birth, migration in the last five years, ability to speak Thai, foreign citizenships, religion, literacy, school grades and higher education, household sizes, number of children per woman, economic activity. A total of 35 pages with mostly numbers, so I have so far only looked into the most important tables, and translated the population numbers per district into a online spreadsheet embedded below.
Table 2 and 3 contain the age distribution of the population, in table 2 for the whole province and in table 3 for each district. Those (as well as the table 1) I have translated into my XML structures, making Chiang Mai the only province thoroughly covered in the census1960.xml file.
One thing which make the comparison with the last census of 2010 a bit difficult is the fact that in 1960 there were only 17 district, whereas today there are 25, so for those districts which have been split one has to be careful when comparing the numbers. Also as I don't have the corresponding numbers for 1970 or 1980, so a timeline isn't possible yet either.