Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Date | Japan | Americas | Other | Total |
| --- | --- | --- | --- | --- |
| 2005-09-30 | 0.41 million | 0.29 million | 0 | 0.70 million |
| 2005-12-31 | 0.57 million | 0.47 million | 0.78 million | 1.82 million |
| 2006-03-31 | 0.58 million | 0.47 million | 0.79 million | 1.83 million |
| 2006-06-30 | 0.59 million | 0.47 million | 0.80 million | 1.86 million |
| 2006-09-30 | 0.59 million | 0.47 million | 0.80 million | 1.87 million |
| 2006-12-31 | 0.60 million | 0.96 million | 0.85 million | 2.40 million |
| 2007-03-31 | 0.61 million | 0.95 million | 0.87 million | 2.42 million |
Question:
Which date had Japanese sales of 0.61 million?
Answer:
2007-03-31