user: Question: How many seasons had a rank of 16?
Columns: ['Season', 'League', 'Rank', 'Games', 'Points', 'GF', 'GA', 'Manager', 'Top Scorer', 'Goals']
Types: ['text', 'text', 'real', 'real', 'real', 'real', 'real', 'text', 'text', 'real']
Sample row: ['1999-00', 'Eredivisie', 14.0, 34.0, 33.0, 41.0, 60.0, 'Rob McDonald', 'Eric Viscaal', 10.0]
SQL:

assistant: SELECT COUNT("Season") FROM "Table" WHERE "Rank" = 16.0;