Asking about other incomes than salary or compensation recorded in question 21.
In recording supplements, the interviewer should record the frequency of receipt of payment, not
calculate for the whole year and record the time unit code as 8 if they do not receive these
incomes on an annual basis.
If none, write zero in the column of the corresponding item. If respondent can only give a total amount write "unclear" in the relevant column and the total amount in the column i.