user: Question: Name the number of years for 18.5
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: [1987.0, 3.0, 0.0, 0.0, 0.0, 0.0, '26.7', '24.3', '$6,085', '59th', 'Jaehne Motorsports']
SQL:

assistant: SELECT COUNT("Year") FROM "Table" WHERE "Avg. Finish" = '18.5';