CREATE TABLE table_27470 ("Team" TEXT, "Home city" TEXT, "Home ground" TEXT, "In Toppserien since" FLOAT, "First appearance" FLOAT, "Seasons" FLOAT)

How many teams have been in Topperserien for 8 seasons?
SELECT COUNT("Team") FROM table_27470 WHERE "Seasons" = '8'
SELECT COUNT("Team") FROM "table_27470" WHERE "Seasons" = '8'