What year had a population region total of 63,073 and a population maroochy smaller than 35,266?
CREATE TABLE "population" (
  "year" real,
  "population_region_total" real,
  "population_caloundra" real,
  "population_maroochy" real,
  "population_noosa" real
);
SELECT MAX("year") FROM "population" WHERE "population_region_total"='63,073' AND "population_maroochy"<'35,266';