They do collect data based on languages but Somalis are weird.
In Australia, we have mandatory voting and a lot of Somalis never register. So as a result, many Somalis don't take the census because they think it will force them to vote or they will get exposed for their non-registration for the electoral roll.
Dhib badanaa soomalida kkk why won’t they register for voting, what could possibly happen to them?