For every person
4. Month and year of birth______
Column 4: Month and year of birth
Record the month and year of birth in details.
If the interviewee knows the lunar month and zodiac year, record according to what is told and do not convert to solar month or the B.E. year.
If the interviewee knows only the year of birth, record the year as told.
If the interviewee knows neither the month nor year of birth, write "X".