user: Question: Which date had Japanese sales of 0.61 million?
Columns: ['Date', 'Japan', 'Americas', 'Other', 'Total']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['2005-09-30', '0.41 million', '0.29 million', '0', '0.70 million']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Japan" = '0.61 million';