Literal question
4. Age in completed years: ____
For those younger than 1 year, write down the number of completed months, followed by the word "Months". For minors younger than 1 month, write "0 months". Example: "0 months", "3 months", etc.
Interviewer instructions
Title 4: Age in completed years
181. "Age in completed years" is meant to be the age that a person has reached on their last birthday. One way of verifying the accuracy of the declared age for the enumerator is asking for the date of their birth, always, so then the conditions for getting this information are achieved.
182. The enumerator should take into account the common tendency of people rounding their age, declaring numbers that end in 0 or in 5. Especially in these cases one has to guess the date of birth, or one has to assure that the person is not rounding their age by either more or fewer [years].
183. If a person does not know their age and there is no other way of knowing for certain, try using personal documents from this person or refer to neighbors; the enumerator should make an estimate of the aforementioned age.
[p. 31]
184. If an enumerated person is not present, get their information from those that are present that know them.
185. For those under one year, write the word "month" immediately after the pertinent number. So: "0 months"; "1 month"; "3 months"; etc.
186. If a person is one year old or more, always write the word "years" after the corresponding number. So: "1 year"; "6 years"; "46 years"; etc.