When the average ratings is 10.3%, what is the average episodes?
CREATE TABLE "2006_summer_season" (
  "japanese_title" text,
  "romaji_title" text,
  "tv_station" text,
  "episodes" real,
  "average_ratings" text
);
SELECT AVG("episodes") FROM "2006_summer_season" WHERE "average_ratings"='10.3%';