CREATE TABLE "1_ethnic_russians" (
  "children_women_over_15" real,
  "oblast_age_of_women" text,
  "15_to_17" real,
  "18_to_19" real,
  "20_to_24" real,
  "25_to_29" real,
  "30_to_34" real,
  "35_to_39" real,
  "40_to_44" real,
  "45_to_49" real,
  "50_to_54" real,
  "55_to_59" real,
  "60_to_64" real,
  "65_to_69" real,
  "70" real
);

Question: What is the 25 to 29 maximum if 30 to 34 is 1357?
SQL: SELECT MIN("25_to_29") FROM "1_ethnic_russians" WHERE "30_to_34"=1357;

Question: If 70+ is 2554, what is the 25 to 29 amount?
SQL: SELECT "25_to_29" FROM "1_ethnic_russians" WHERE "70"=2554;