 All censuses from the period are disputed, and some give conflicting data for example in Kosice according to the Czechoslovak censuses 15-20% of the population was Hungarian.However, during the parliamentary elections the Ethnic Hungarian parties got 35-45% of the total votes (excluding those Hungarians who voted for the Communists or the Social democrats).The whole matter is complicated by the fact that there was a high percentage of bilingual and similarly "Slovak-Hungarian" persons who could claim being both Slovak and Hungarian.