user: Question: What year did Randy Lewis drive?
Columns: ['Year', 'Driver', 'Constructor', 'Location', 'Formula', 'Report']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1960.0, 'Jack Brabham', 'Cooper - Climax', 'Roskilde Ring', 'Formula 2', 'Report']
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Driver" = 'Randy Lewis';