user: Question: Name the average year with Laps of 6
Columns: ['Year', 'Class', 'Tyres', 'Team', 'Co-Drivers', 'Laps', 'Pos.', 'Class Pos.']
Types: ['real', 'text', 'text', 'text', 'text', 'real', 'text', 'text']
Sample row: [1980.0, 'Gr.5', 'P', 'Scuderia Lancia Corse', 'Hans Heyer Bernard Darniche', 6.0, 'DNF', 'DNF']
SQL:

assistant: SELECT AVG("Year") FROM "Table" WHERE "Laps" = 6.0;