Which year had playoffs of champion?
CREATE TABLE table_name_27 (
    year INTEGER,
    playoffs VARCHAR
)
SELECT AVG(year) FROM table_name_27 WHERE playoffs = "champion"
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: Which year had playoffs of champion? ### Input: CREATE TABLE table_name_27 (
    year INTEGER,
    playoffs VARCHAR
) ### Response: SELECT AVG(year) FROM table_name_27 WHERE playoffs = "champion"