user: Question: In what year was the average speed 92.68?
Columns: ['Year', 'Date', 'Driver', 'Team', 'Manufacturer', 'Laps', 'Miles (km)', 'Race Time', 'Average Speed (mph)', 'Report']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text', 'text', 'text', 'text']
Sample row: ['1958', 'September 14', 'Speedy Thompson', 'Speedy Thompson', 'Chevrolet', 200.0, '100 (160.934)', '1:43:40', '57.878', 'Report']
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Average Speed (mph)" = '92.68';