The census question on national identity was introduced in 2011 due to increased interest in ‘national’ consciousness and a demand for people to be able to acknowledge their national identity.
Cafodd cwestiwn y cyfrifiad ar hunaniaeth genedlaethol ei gyflwyno yn 2011 oherwydd bod mwy o ddiddordeb mewn ymwybyddiaeth 'genedlaethol' a galw ar bobl i allu cydnabod eu hunaniaeth genedlaethol.