user: Question: When was John McEnroe's minimum year?
Columns: ['Outcome', 'Year', 'Championship', 'Surface', 'Opponent in the final', 'Score in the final']
Types: ['text', 'real', 'text', 'text', 'text', 'text']
Sample row: ['Winner', 1979.0, 'US Open', 'Hard', 'Vitas Gerulaitis', '7–5, 6–3, 6–3']
SQL:

assistant: SELECT MIN("Year") FROM "Table";