user: Question: What is the year the institution Tougaloo College joined?
Columns: ['Institution', 'Location', 'Mens Nickname', 'Womens Nickname', 'Founded', 'Type', 'Enrollment', 'Joined']
Types: ['text', 'text', 'text', 'text', 'real', 'text', 'real', 'text']
Sample row: ['Dillard University', 'New Orleans, Louisiana', 'Bleu Devils', 'Lady Bleu Devils', 1869.0, 'Private/ (Methodist & Church of Christ)', 900.0, '1981']
SQL:

assistant: SELECT "Joined" FROM "Table" WHERE "Institution" = 'Tougaloo College';