user: Question: Name the least transfers out when transfers is 21
Columns: ['Country', 'Transfers In', 'Transfers Out', 'Internal Transfers', 'Total Transfers']
Types: ['text', 'real', 'real', 'real', 'real']
Sample row: ['Germany', 46.0, 57.0, 12.0, 115.0]
SQL:

assistant: SELECT MIN("Transfers Out") FROM "Table" WHERE "Total Transfers" = 21.0;