What was the amount of deaths that had a natural growth smaller than 3.4, and a total fertility rate of 1.63?
CREATE TABLE "population_movement_of_jews_from_former_" (
  "year" text,
  "births_000s" real,
  "deaths" real,
  "natural_growth" real,
  "total_fertility_rate" text
);
SELECT "deaths" FROM "population_movement_of_jews_from_former_" WHERE "natural_growth"<3.4 AND "total_fertility_rate"='1.63';