What is the average year with alfredo salazar fina salazar in mixed doubles?
CREATE TABLE table_name_41 (
    year INTEGER,
    mixed_doubles VARCHAR
)
SELECT AVG(year) FROM table_name_41 WHERE mixed_doubles = "alfredo salazar fina salazar"
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 average year with alfredo salazar fina salazar in mixed doubles? ### Input: CREATE TABLE table_name_41 (
    year INTEGER,
    mixed_doubles VARCHAR
) ### Response: SELECT AVG(year) FROM table_name_41 WHERE mixed_doubles = "alfredo salazar fina salazar"