After all, the census questionnaire is intended to cover the entire population of the country.

An additional 0.56% of residents declined to state their ethnicity on the census questionnaire.

In addition, a further 7,507 (0.17%) of the inhabitants declined to state their nationality on the census questionnaire.

In addition, 2.23% of the inhabitants chose not to specify their ethnic background on the census questionnaire.

The 2011 census questionnaire included 56 questions in total.

In 2011 those who refused to complete the census questionnaire or included false information could face a fine of up to £1,000.

Another would require that census questionnaires be printed in 31 languages.

Between 1960 and 1990, the census questionnaire in Puerto Rico did not ask about race or color.

Committee members have examined the percentage of census questionnaires that were filled out and returned.

In census questionnaires, less than 15% reported any formal religious affiliation by 2000.