user: Question: How many rounds did Patrick Tambay record the fastest lap?
Columns: ['Rnd', 'Race', 'Date', 'Location', 'Pole Position', 'Fastest Lap', 'Race Winner', 'Constructor', 'Report']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Brazilian Grand Prix', '25 March', 'Jacarepaguá', 'Elio de Angelis', 'Alain Prost', 'Alain Prost', 'McLaren - TAG', 'Report']
SQL:

assistant: SELECT COUNT("Rnd") FROM "Table" WHERE "Fastest Lap" = 'Patrick Tambay';