In what year is Zaxxon the Standalone?
CREATE TABLE table_66309 (
    "Year" text,
    "Arcade" text,
    "Standalone" text,
    "Console" text,
    "Computer" text
)
SELECT "Year" FROM table_66309 WHERE "Standalone" = 'zaxxon'
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: In what year is Zaxxon the Standalone? ### Input: CREATE TABLE table_66309 (
    "Year" text,
    "Arcade" text,
    "Standalone" text,
    "Console" text,
    "Computer" text
) ### Response: SELECT "Year" FROM table_66309 WHERE "Standalone" = 'zaxxon'