user: Question: What year had 13 points?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Pts.']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1963.0, 'Reg Parnell Racing', 'Lotus 24', 'Climax', 0.0]
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Pts." = 13.0;