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 | 15.0 | Eddie Lee Ivery | Running Back | Georgia Tech |
| 2.0 | 44.0 | Steve Atkins | Running Back | Maryland |
| 3.0 | 71.0 | Charles Johnson | Defensive Tackle | Maryland |
| 6.0 | 153.0 | Dave Simmons | Linebacker | North Carolina |
| 7.0 | 184.0 | Rich Wingo | Linebacker | Alabama |
| 8.0 | 193.0 | Ron Cassidy | Wide Receiver | Utah State |
| 9.0 | 235.0 | John Thompson | Tight End | Utah State |
| 10.0 | 264.0 | Frank Lockett | Wide Receiver | Nebraska |
| 11.0 | 290.0 | Mark Thorson | Defensive Back | Ottawa |
| 12.0 | 318.0 | Bill Moats | Punter | South Dakota |
Question:
How many picks are there for defensive back for rounds larger than 11?
Answer:
0.0