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 | Ship Name | Tonnage | Ship Type | Location | Disposition of Ship |
| --- | --- | --- | --- | --- | --- |
| 30 August 1814 | Lettice | t | Brig | English Channel | Captured |
| 31 | Bon Accord | t | Brig | “ | Captured |
| 1 September | Mary | t | Brig | “ | Captured |
| 1 | HMS Avon | 391 | 18-gun Brig | “ | Wrecked |
| 12 | Three Brothers | t | Brig | SW Approaches | Scuttled |
| 14 | Bacchus | t | Brig | “ | Sank |
| 21 | HMS Atalanta | 225 | 8 gun Brig | Mid-Atlantic | Captured |
Question:
What date was a brig type ship located in SW Approaches?
Answer:
12.0