How many 1990 growth numbers had less than 10,522 in 1970?
CREATE TABLE "population_growth_history" (
  "city" text,
  "1970" real,
  "1980" real,
  "1990" real,
  "2000" real,
  "2010_est" real
);
SELECT COUNT("1990") FROM "population_growth_history" WHERE "1970"<'10,522';