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 | Choice | Overall | Player name | Position | College |
| --- | --- | --- | --- | --- | --- |
| 1.0 | 1.0 | 1.0 | Tommy Mason | Running Back | Tulane |
| 2.0 | 1.0 | 15.0 | Rip Hawkins | Linebacker | North Carolina |
| 3.0 | 1.0 | 29.0 | Fran Tarkenton | Quarterback | Georgia |
| 4.0 | 1.0 | 43.0 | Chuck Lamson | Safety | Wyoming |
| 5.0 | 1.0 | 57.0 | Ed Sharockman | Cornerback | Pittsburgh |
| 6.0 | 1.0 | 71.0 | Jerry Burch | End | Georgia Tech |
| 7.0 | 1.0 | 85.0 | Allan Ferrie | End | Wagner |
| 8.0 | 1.0 | 99.0 | Paul Lindquist | Defensive Tackle | New Hampshire |
| 9.0 | 1.0 | 113.0 | Dan Sheehan | Offensive Tackle | Tennessee-Chattanooga |
| 10.0 | 1.0 | 127.0 | Doug Mayberry | Fullback | Utah State |
| 11.0 | 1.0 | 141.0 | Jerry Mays | Defensive Tackle | Southern Methodist |
| 12.0 | 1.0 | 155.0 | Steve Stonebreaker | Linebacker | Detroit |
| 13.0 | 1.0 | 169.0 | Ray Hayes | Fullback | Central State |
| 14.0 | 1.0 | 183.0 | Ken Petersen | Offensive lineman | Utah |
| 15.0 | 1.0 | 197.0 | Mike Mercer | Kicker | Arizona State |
| 16.0 | 1.0 | 211.0 | Ted Karpowicz | Running Back | Detroit |
| 17.0 | 1.0 | 225.0 | Willie Jones | Fullback | Purdue |
| 18.0 | 1.0 | 239.0 | Bob Voigt | Offensive Tackle | Cal State-Los Angeles |
| 19.0 | 1.0 | 253.0 | Bill Hill | Fullback | Presbyterian |
Question:
What round was Steve Stonebreaker drafted?
Answer:
12.0