CREATE TABLE table_22178 ("Season" FLOAT, "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)

When the average away attendance is 1.889 in the Superettan, what's the average home attendance?
SELECT "Average Attendance Home" FROM table_22178 WHERE "Division / Section" = 'Superettan' AND "Average Attendance Away" = '1.889'
SELECT "Average Attendance Home" FROM "table_22178" WHERE "Average Attendance Away" = '1.889' AND "Division / Section" = 'Superettan'