What 2012 amount of earnings corresponds with less than 28 tournaments played?
CREATE TABLE "pga_tour_career_summary" (
  "year" text,
  "tournaments_played" real,
  "cuts_made" real,
  "wins" real,
  "top_10s" real,
  "best_finish" text,
  "earnings" text,
  "money_list_rank" text
);
SELECT "earnings" FROM "pga_tour_career_summary" WHERE "tournaments_played"<28 AND "year"='2012';