user: Question: What is the total number of S No(s), when the Margin is 16 runs?
Columns: ['S No', 'Team (A)', 'Team (B)', 'Winner', 'Margin', 'Match Date']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'India', 'Sri Lanka', 'India', '10 runs', 'Jan 17, 1987']
SQL:

assistant: SELECT COUNT("S No") FROM "Table" WHERE "Margin" = '16 runs';