How many wickets were there when average was 22.66?
CREATE TABLE table_16570286_4 (wickets VARCHAR, average VARCHAR)
SELECT wickets FROM table_16570286_4 WHERE average = "22.66"
### Context: CREATE TABLE table_16570286_4 (wickets VARCHAR, average VARCHAR) ### Question: How many wickets were there when average was 22.66? ### Answer: SELECT wickets FROM table_16570286_4 WHERE average = "22.66"