Head of program and budget organization: each census is done every ten years and in the third round, the type of census is based on registration, which reduced the cost of the census by about 90%. In Asia, only 4 countries managed to conduct a census according to the registration method, of which Iran is the fifth country.

Head of program and budget organization: each census is done every ten years and in the third round, the type of census is based on registration, which reduced the cost of the census by about 90%. In Asia, only 4 countries managed to conduct a census according to the registration method, of which Iran is the fifth country.