What is the highest Number of Households, when Per Capita Income is "$25,557", and when Population is less than "22,330"?
CREATE TABLE "georgia_counties_ranked_by_per_capita_in" (
  "county" text,
  "per_capita_income" text,
  "median_household_income" text,
  "median_family_income" text,
  "population" real,
  "number_of_households" real
);
SELECT MAX("number_of_households") FROM "georgia_counties_ranked_by_per_capita_in" WHERE "per_capita_income"='$25,557' AND "population"<'22,330';