 In 1979, Russian was claimed as a native language by a large proportion of Jews (66%) and Belarusians (62%), and by a significant proportion of Ukrainians (30%).Proportions of other ethnicities naming Russian as a native language ranged from 17% of Bulgarians to 3% of Moldovans (Russian was more spoken by urban Moldovans than by rural Moldovans).Russian was claimed as a second language by a sizeable proportion of all ethnicities