user: Question: Tell me the total number of date for carpet
Columns: ['Outcome', 'Date', 'Championship', 'Surface', 'Opponent in the final', 'Score in the final']
Types: ['text', 'real', 'text', 'text', 'text', 'text']
Sample row: ['Winner', 1969.0, 'Caracas, Venezuela', 'Clay', 'Mark Cox', '8–6, 6–3, 2–6, 6–4']
SQL:

assistant: SELECT COUNT("Date") FROM "Table" WHERE "Surface" = 'carpet';