How many season did sportfreunde siegen win best supported club?
CREATE TABLE table_481 (
    "Season" text,
    "Overall Spectators" real,
    "Per game" real,
    "Best supported Club" text,
    "Spectators /game" real,
    "Top goal scorer" text,
    "Goals" real
)
SELECT COUNT("Season") FROM table_481 WHERE "Best supported Club" = 'Sportfreunde Siegen'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many season did sportfreunde siegen win best supported club? ### Input: CREATE TABLE table_481 (
    "Season" text,
    "Overall Spectators" real,
    "Per game" real,
    "Best supported Club" text,
    "Spectators /game" real,
    "Top goal scorer" text,
    "Goals" real
) ### Response: SELECT COUNT("Season") FROM table_481 WHERE "Best supported Club" = 'Sportfreunde Siegen'