Some heads of households refused to answer the census questions, forcing the field agent to guess at their names and family members.

Issues such as whether to include questions about current citizenship status in census questions have been debated in the Senate.

The relevant census question asked for "the ethnic or cultural origins" of the respondent's ancestors and not the respondents themselves.

A separate census question on "cultural or ethnic origin" (question 17) does not refer to skin color.

"There's a lot of bias associated with census questions," he adds.

(Note that subjects were permitted to select more than one answer for this census question.)

The law makes it compulsory for every citizen to answer the census questions truthfully.

In all these cases the basic information comes from a census question such as'Where were you living five years ago?

Further, more attention has to be given to the census questions.

The same went for collecting statistical data, including the delicate issue of census questions.