When was the last year when Katharine Hepburn won?
CREATE TABLE table_name_20 (year INTEGER, actress VARCHAR)
SELECT MAX(year) FROM table_name_20 WHERE actress = "katharine hepburn"
### Context: CREATE TABLE table_name_20 (year INTEGER, actress VARCHAR) ### Question: When was the last year when Katharine Hepburn won? ### Answer: SELECT MAX(year) FROM table_name_20 WHERE actress = "katharine hepburn"