In 2009, what Appearances had a Winning Percentage of less than 0?
CREATE TABLE "appearances_by_team" (
  "appearances" real,
  "team" text,
  "wins" real,
  "losses" real,
  "winning_percentage" real,
  "season_s" text
);
SELECT AVG("appearances") FROM "appearances_by_team" WHERE "season_s"='2009' AND "winning_percentage"<0;