user: Question: Name the number of appearances for Yugoslavia
Columns: ['Name', 'Position', 'Period', 'Appearances¹', 'Goals¹', 'Nationality²']
Types: ['text', 'text', 'text', 'real', 'real', 'text']
Sample row: ['Mamadou Sakho *', 'Defender', '2006 –', 201.0, 7.0, 'France']
SQL:

assistant: SELECT SUM("Appearances¹") FROM "Table" WHERE "Nationality²" = 'Yugoslavia';