user: Question: What is the lowest enrollment amount for a year left of 2012 and a current conference of Mid-South?
Columns: ['Location', 'Founded', 'Type', 'Enrollment', 'Nickname', 'Joined', 'Left', 'Current Conference']
Types: ['text', 'real', 'text', 'real', 'text', 'real', 'real', 'text']
Sample row: ['Mount Berry, Georgia', 1902.0, 'Private', 1937.0, 'Vikings', 1996.0, 2004.0, 'SAA (NCAA Division III)']
SQL:

assistant: SELECT MIN("Enrollment") FROM "Table" WHERE "Left" = 2012.0 AND "Current Conference" = 'Mid-South';