Literal question
<span class="h2">Section 1: Characteristics - For all persons</span></p>
<p>4. Date of birth and age</p>
<p>(a) What is (N's) [the respondent's] date of birth?</p>
<div class="i1">_ _ DD - _ _ MM - _ _ _ _ YYYY</div><p>(b) What was (N's) [the respondent's] age at last birthday?</p>
<div class="i1">_ _ _</div>
Interviewer instructions
<span class="h3">Section 1 - Characteristics</span></p>
<p><span class="em">1.5. Age</span></p>
<p>Age is the interval of time between the date of birth and the date of the census expressed in completed years. When age is not known, estimates should be made based on references to major national events such as hurricanes, civil unrest etc.