The first statistic to record ethnic groups throughout Bessarabia was an incomplete administrative census made in 1843–1844 at the request of the Russian Academy of Sciences. The following proportions were recorded, in a total of 692,777 inhabitants: 59.4% Moldavians, 17.2% Ukrainians, 9.3% Bulgarians, 7.1% Jews and 2.2% Russians. In the case of some urban centres, figures were not reported for all ethnic groups. Furthermore, the size of the total populations differs from other official reports of the same period, which put the population of Bessarabia at 774,492 or 793,103.