How many different items appear in he attendance column at Sun Devil Stadium?
CREATE TABLE table_26293 (
    "Bowl Game" text,
    "Date" text,
    "Stadium" text,
    "City" text,
    "Television" text,
    "Matchup/Results" text,
    "Attendance" real,
    "Payout (US$)" text
)
SELECT COUNT("Attendance") FROM table_26293 WHERE "Stadium" = 'Sun Devil Stadium'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many different items appear in he attendance column at Sun Devil Stadium? ### Input: CREATE TABLE table_26293 (
    "Bowl Game" text,
    "Date" text,
    "Stadium" text,
    "City" text,
    "Television" text,
    "Matchup/Results" text,
    "Attendance" real,
    "Payout (US$)" text
) ### Response: SELECT COUNT("Attendance") FROM table_26293 WHERE "Stadium" = 'Sun Devil Stadium'