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