CREATE TABLE table_481 ("Season" TEXT, "Overall Spectators" FLOAT, "Per game" FLOAT, "Best supported Club" TEXT, "Spectators /game" FLOAT, "Top goal scorer" TEXT, "Goals" FLOAT)

How many season did sportfreunde siegen win best supported club?
SELECT COUNT("Season") FROM table_481 WHERE "Best supported Club" = 'Sportfreunde Siegen'
SELECT COUNT("Season") FROM "table_481" WHERE "Best supported Club" = 'Sportfreunde Siegen'