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 | Player | Position | School/Club Team |
| --- | --- | --- | --- | --- |
| 1.0 | 22.0 | Ron Hallstrom | Guard | Iowa |
| 3.0 | 71.0 | Del Rodgers | Running Back | Utah |
| 4.0 | 98.0 | Robert Brown | Linebacker | Virginia Tech |
| 5.0 | 126.0 | Mike Meade | Running Back | Penn State |
| 6.0 | 152.0 | Chet Parlavecchio | Linebacker | Penn State |
| 7.0 | 183.0 | Joel Whitley | Defensive Back | UTEP |
| 8.0 | 210.0 | Thomas Boyd | Linebacker | Alabama |
| 9.0 | 237.0 | Charles Riggins | Defensive End | Bethune-Cookman |
| 10.0 | 264.0 | Eddie Garcia | Placekicker | SMU |
| 11.0 | 294.0 | John Macauley | Center | Stanford |
| 12.0 | 321.0 | Phil Epps | Wide Receiver | TCU |
Question:
How many Picks have a Position of defensive back?
Answer:
1.0