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:
| Round | Pick # | Overall | Name | Position | College |
| --- | --- | --- | --- | --- | --- |
| 1.0 | 22.0 | 22.0 | Andre Rison | Wide Receiver | Michigan State |
| 3.0 | 16.0 | 72.0 | Mitchell Benson | Defensive Tackle | TCU |
| 4.0 | 15.0 | 99.0 | Pat Tomberlin | Guard | Florida State |
| 6.0 | 16.0 | 155.0 | Quintus McDonald | Linebacker | Penn State |
| 7.0 | 15.0 | 182.0 | Ivy Joe Hunter | Running Back | Kentucky |
| 7.0 | 18.0 | 185.0 | Charles Washington | Defensive Back | Cameron |
| 8.0 | 17.0 | 212.0 | Kurt Larson | Linebacker | Michigan State |
| 9.0 | 16.0 | 239.0 | William Mackall | Wide Receiver | Tennessee-Martin |
| 10.0 | 15.0 | 266.0 | Jim Thompson | Offensive Tackle | Auburn |
| 11.0 | 17.0 | 296.0 | Wayne Johnson | Quarterback | Georgia |
| 12.0 | 7.0 | 314.0 | William DuBose | Running Back | South Carolina State |
| 12.0 | 16.0 | 323.0 | Steve Taylor | Quarterback | Nebraska |
Question:
What is the overall pick average with the pick # lower than 15?
Answer:
314.0