user: Question: How many top tens had an average start of 29.4?
Columns: ['Year', 'Starts', 'Wins', 'Top 5', 'Top 10', 'Poles', 'Avg. Start', 'Avg. Finish', 'Winnings', 'Position', 'Team(s)']
Types: ['real', 'real', 'real', 'real', 'real', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1978.0, 5.0, 0.0, 1.0, 3.0, 0.0, '16.2', '11.4', '$21,395', '39th', 'Hagan Racing']
SQL:

assistant: SELECT COUNT("Top 10") FROM "Table" WHERE "Avg. Start" = '29.4';