What is the total number of years that Scuderia Guastalla was an entrant?
CREATE TABLE table_69546 (
    "Year" real,
    "Entrant" text,
    "Chassis" text,
    "Engine" text,
    "Points" text
)
SELECT COUNT("Year") FROM table_69546 WHERE "Entrant" = 'scuderia guastalla'
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: What is the total number of years that Scuderia Guastalla was an entrant? ### Input: CREATE TABLE table_69546 (
    "Year" real,
    "Entrant" text,
    "Chassis" text,
    "Engine" text,
    "Points" text
) ### Response: SELECT COUNT("Year") FROM table_69546 WHERE "Entrant" = 'scuderia guastalla'