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:
| Year | Date | Winner | Result | Loser | Location |
| --- | --- | --- | --- | --- | --- |
| 1970.0 | November 1 | Kansas City Chiefs | 17–17 | Oakland Raiders | Municipal Stadium |
| 1970.0 | December 12 | Oakland Raiders | 20–6 | Kansas City Chiefs | Oakland-Alameda County Coliseum |
| 1971.0 | October 31 | Kansas City Chiefs | 20–20 | Oakland Raiders | Oakland-Alameda County Coliseum |
| 1971.0 | December 12 | Kansas City Chiefs | 16–14 | Oakland Raiders | Municipal Stadium |
| 1972.0 | November 5 | Kansas City Chiefs | 27–14 | Oakland Raiders | Arrowhead Stadium |
| 1972.0 | November 26 | Oakland Raiders | 26–3 | Kansas City Chiefs | Oakland-Alameda County Coliseum |
| 1973.0 | September 30 | Kansas City Chiefs | 16–3 | Oakland Raiders | Arrowhead Stadium |
| 1973.0 | December 8 | Oakland Raiders | 37–7 | Kansas City Chiefs | Oakland-Alameda County Coliseum |
| 1974.0 | September 22 | Oakland Raiders | 27–7 | Kansas City Chiefs | Oakland-Alameda County Coliseum |
| 1974.0 | December 8 | Oakland Raiders | 7–6 | Kansas City Chiefs | Arrowhead Stadium |
| 1975.0 | October 12 | Kansas City Chiefs | 42–10 | Oakland Raiders | Arrowhead Stadium |
| 1975.0 | December 21 | Oakland Raiders | 28–20 | Kansas City Chiefs | Oakland-Alameda County Coliseum |
| 1976.0 | September 20 | Oakland Raiders | 24–21 | Kansas City Chiefs | Arrowhead Stadium |
| 1976.0 | November 14 | Oakland Raiders | 21–10 | Kansas City Chiefs | Oakland-Alameda County Coliseum |
| 1977.0 | October 3 | Oakland Raiders | 37–28 | Kansas City Chiefs | Oakland-Alameda County Coliseum |
| 1977.0 | December 18 | Oakland Raiders | 21–20 | Kansas City Chiefs | Arrowhead Stadium |
| 1978.0 | October 15 | Oakland Raiders | 28–6 | Kansas City Chiefs | Oakland-Alameda County Coliseum |
| 1978.0 | November 5 | Oakland Raiders | 20–10 | Kansas City Chiefs | Arrowhead Stadium |
| 1979.0 | September 23 | Kansas City Chiefs | 35–7 | Oakland Raiders | Arrowhead Stadium |
| 1979.0 | November 18 | Kansas City Chiefs | 24–21 | Oakland Raiders | Oakland-Alameda County Coliseum |
Question:
What is the date where the winner was the Oakland Raiders in 1975?
Answer:
December 21