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:
| Driver | Constructor | Laps | Time/Retired | Grid |
| --- | --- | --- | --- | --- |
| Stirling Moss | Cooper - Climax | 62.0 | 2:11:55.41 | 1.0 |
| Masten Gregory | Cooper - Climax | 61.0 | + 1 Lap | 3.0 |
| Dan Gurney | Ferrari | 61.0 | + 1 Lap | 6.0 |
| Maurice Trintignant | Cooper - Climax | 60.0 | + 2 Laps | 4.0 |
| Harry Schell | BRM | 59.0 | + 3 Laps | 9.0 |
| Roy Salvadori | Aston Martin | 59.0 | + 3 Laps | 12.0 |
| Ron Flockhart | BRM | 59.0 | + 3 Laps | 11.0 |
| Carroll Shelby | Aston Martin | 58.0 | + 4 Laps | 13.0 |
| Tony Brooks | Ferrari | 57.0 | + 5 Laps | 10.0 |
| Mário de Araújo Cabral | Cooper - Maserati | 56.0 | + 6 Laps | 14.0 |
| Bruce McLaren | Cooper - Climax | 38.0 | Transmission | 8.0 |
| Jack Brabham | Cooper - Climax | 23.0 | Transmission | 2.0 |
| Jo Bonnier | BRM | 10.0 | Engine | 5.0 |
| Phil Hill | Ferrari | 5.0 | Accident | 7.0 |
| Graham Hill | Lotus - Climax | 5.0 | Accident | 15.0 |
| Innes Ireland | Lotus - Climax | 3.0 | Gearbox | 16.0 |
Question:
What is masten gregory's average lap?
Answer:
61.0