^Special Eurobarometer 493, European Union: European Commission, September 2019, pages 229-230 Retrieved 17 January 2020. The question asked was "Do you consider yourself to be...?" With a card showing: Catholic, Orthodox Christian, Protestant, Other Christian, Jewish, Muslim - Shia, Muslim - Sunni, Other Muslim, Sikh, Buddhist, Hindu, Atheist, Non believer/Agnostic and Other. Also space was given for Refusal (SPONTANEOUS) and Don't Know. Jewish, Sikh, Buddhist and Hindu did not reach the 1% threshold.
Sources
This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed. (1913). "Hungary". Catholic Encyclopedia. New York: Robert Appleton Company.