user: Question: How many mixed doubles were won in 1996?
Columns: ['Year', 'Mens singles', 'Womens singles', 'Mens doubles', 'Womens doubles', 'Mixed doubles']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1984.0, 'Romain Fritz', 'Martine Ludwig', 'No competition', 'No competition', 'No competition']
SQL:

assistant: SELECT COUNT("Mixed doubles") FROM "Table" WHERE "Year" = 1996.0;