user: Question: Which season with 16 races had less than 321 points and a larger percent than 65.78 possible?
Columns: ['Driver', 'Points', 'Season', 'Races', 'Percentage of possible points']
Types: ['text', 'real', 'text', 'real', 'real']
Sample row: ['Sebastian Vettel', 392.0, '2011', 19.0, 82.53]
SQL:

assistant: SELECT "Season" FROM "Table" WHERE "Points" < 321.0 AND "Percentage of possible points" > 65.78 AND "Races" = 16.0;