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 | Date | Opponent | Result | Tar Heels points | Opponents | Record |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | Sept. 6 | Furman | Win | 35.0 | 13.0 | 1-0 |
| 2.0 | Sept 13 | @ Texas Tech | Win | 9.0 | 3.0 | 2-0 |
| 3.0 | Sept. 27 | Maryland | Win | 17.0 | 3.0 | 3-0 |
| 4.0 | Oct. 4 | Georgia Tech | Win | 33.0 | 0.0 | 4-0 |
| 5.0 | Oct 11 | @ Wake Forest | Win | 27.0 | 9.0 | 5-0 |
| 6.0 | Oct 18 | North Carolina State | Win | 28.0 | 8.0 | 6-0 |
| 7.0 | Oct 25 | East Carolina | Win | 31.0 | 3.0 | 7-0 |
| 8.0 | Nov 1 | @ Oklahoma | Loss | 7.0 | 41.0 | 7-1 |
| 9.0 | Nov 8 | @ Clemson | Win | 24.0 | 19.0 | 8-1 |
| 10.0 | Nov 15 | Virginia | Win | 26.0 | 3.0 | 9-1 |
| 11.0 | Nov 22 | Duke | Win | 44.0 | 21.0 | 10-1 |
Question:
How many times were Duke the opponents?
Answer:
1.0