00599naa#a2200181#i#450# EN\\bibl\114003 20260210151212.2 2782-4586 20251231b2025####ek#y0engy0150####ca RU Statistical analysis of the educational level of the population of the Russian Federation Journal article Moscow ITBO University 2025 6 с. Journal article local Виды официальной статистики. 311.31 Boykova Anna Viktorovna Rozova Svetlana Viktorovna jomeam.ru