What year is listed that has points greater than 0 with a chassis labeled AGS JH22?
CREATE TABLE "complete_formula_one_results" (
  "year" real,
  "chassis" text,
  "engine" text,
  "tyres" text,
  "points" real
);
SELECT "year" FROM "complete_formula_one_results" WHERE "points">0 AND "chassis"='ags jh22';