How many years have a Player name of ronnie bull?
CREATE TABLE table_name_75 (
    year INTEGER,
    player_name VARCHAR
)
SELECT SUM(year) FROM table_name_75 WHERE player_name = "ronnie bull"
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: How many years have a Player name of ronnie bull? ### Input: CREATE TABLE table_name_75 (
    year INTEGER,
    player_name VARCHAR
) ### Response: SELECT SUM(year) FROM table_name_75 WHERE player_name = "ronnie bull"