In what years, when the conference record was 63-9, was the coach Walter Meanwell?
CREATE TABLE table_33720 (
    "Coach" text,
    "Years" text,
    "Record" text,
    "Conference Record" text,
    "Overall Win Percentage" text
)
SELECT "Years" FROM table_33720 WHERE "Coach" = 'walter meanwell' AND "Conference Record" = '63-9'
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 years, when the conference record was 63-9, was the coach Walter Meanwell? ### Input: CREATE TABLE table_33720 (
    "Coach" text,
    "Years" text,
    "Record" text,
    "Conference Record" text,
    "Overall Win Percentage" text
) ### Response: SELECT "Years" FROM table_33720 WHERE "Coach" = 'walter meanwell' AND "Conference Record" = '63-9'