When the average away attendance is 1.889 in the Superettan, what's the average home attendance?
CREATE TABLE "attendances" (
  "season" real,
  "average_attendance_home" text,
  "highest_attendance_home" text,
  "average_attendance_away" text,
  "highest_attendance_away" text,
  "division_section" text,
  "level" text,
  "average_attendance_league" text
);
SELECT "average_attendance_home" FROM "attendances" WHERE "division_section"='Superettan' AND "average_attendance_away"='1.889';