user: Question: What was the highest average when Fuml was 0?
Columns: ['Player', 'Att.', 'Yards', 'Avg.', 'Long', 'FumL']
Types: ['text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Marion Barber', 93.0, 395.0, 4.2, 25.0, 1.0]
SQL:

assistant: SELECT MAX("Avg.") FROM "Table" WHERE "FumL" < 0.0;