user: Question: What was the most recent year for Dean Van Lines?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1951.0, 'Viking Trailer', 'Lesovsky', 'Offenhauser L4', 0.0]
SQL:

assistant: SELECT MAX("Year") FROM "Table" WHERE "Entrant" = 'Dean Van Lines';