Table 2 Age and sex structure and dependency ratio of population : 1960 census years.
 
Region Census years
1990 1980 1970 1960
Whole Kingdom 106.3 87.4 67.0 51.2
Bangkok Metropolis 3,758.2 3,000.9 1,966.4 1,365.1
Central (Excluding Bangkok Metropolis) 118.0 95.0 73.6 59.9
Northern 62.4 53.5 44.1 33.7
Northeastern 112.8 93.0 71.2 53.3
Southern 98.5 79.6 60.4 46.3
       
       
Source : Population and Housing census 1960, 1970, 1980 and 1990, National Statistical Office.