Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_64 (year INTEGER, champion VARCHAR)
### Question:
What year weas John McEnroe the champion?
### Answer:
SELECT AVG(year) FROM table_name_64 WHERE champion = "john mcenroe"