user: Question: What is the average number of laps with 16 grids?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Fernando Alonso', 'Renault', 62.0, '1:27:41.921', 2.0]
SQL:

assistant: SELECT AVG("Laps") FROM "Table" WHERE "Grid" = 16.0;