user: Question: Name the total number of grid for 30
Columns: ['Fin. Pos', 'Car No.', 'Driver', 'Team', 'Laps', 'Time/Retired', 'Grid', 'Laps Led', 'Points']
Types: ['real', 'real', 'text', 'text', 'real', 'text', 'real', 'real', 'text']
Sample row: [1.0, 9.0, 'Scott Dixon', 'Target Chip Ganassi', 60.0, '1:43:51.5094', 2.0, 23.0, '50+3']
SQL:

assistant: SELECT COUNT("Grid") FROM "Table" WHERE "Points" = '30';