What total average has 1988 has the year (s) won?
CREATE TABLE table_12505 (
    "Player" text,
    "Country" text,
    "Year(s) won" text,
    "Total" real,
    "To par" text,
    "Finish" text
)
SELECT AVG("Total") FROM table_12505 WHERE "Year(s) won" = '1988'
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 total average has 1988 has the year (s) won? ### Input: CREATE TABLE table_12505 (
    "Player" text,
    "Country" text,
    "Year(s) won" text,
    "Total" real,
    "To par" text,
    "Finish" text
) ### Response: SELECT AVG("Total") FROM table_12505 WHERE "Year(s) won" = '1988'