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:
| Game | December | Opponent | Score | Record |
| --- | --- | --- | --- | --- |
| 26.0 | 4.0 | @ Buffalo Sabres | 6 - 6 | 9-14-3 |
| 27.0 | 5.0 | @ Kansas City Scouts | 3 - 2 | 10-14-3 |
| 28.0 | 7.0 | Washington Capitals | 5 - 2 | 11-14-3 |
| 29.0 | 10.0 | Buffalo Sabres | 2 - 2 | 11-14-4 |
| 30.0 | 11.0 | @ Boston Bruins | 5 - 1 | 12-14-4 |
| 31.0 | 13.0 | @ Detroit Red Wings | 5 - 2 | 13-14-4 |
| 32.0 | 14.0 | Toronto Maple Leafs | 6 - 1 | 13-15-4 |
| 33.0 | 17.0 | New York Islanders | 3 - 0 | 13-16-4 |
| 34.0 | 19.0 | @ Atlanta Flames | 8 - 3 | 13-17-4 |
| 35.0 | 21.0 | Minnesota North Stars | 2 - 0 | 14-17-4 |
| 36.0 | 23.0 | Pittsburgh Penguins | 4 - 3 | 15-17-4 |
| 37.0 | 31.0 | Atlanta Flames | 8 - 1 | 15-18-4 |
Question:
Score of 8 - 1 happened on what day in December?
Answer:
31.0