user: Question: What years did Lou Graham win in?
Columns: ['Player', 'Country', 'Year(s) won', 'Total', 'To par', 'Finish']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Jack Nicklaus', 'United States', '1962 , 1967 , 1972', 272.0, '–8', '1']
SQL:

assistant: SELECT "Year(s) won" FROM "Table" WHERE "Player" = 'Lou Graham';