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 |
| --- | --- | --- | --- | --- |
| Fernando Alonso | McLaren - Mercedes | 78.0 | 1:40:29.329 | 1.0 |
| Lewis Hamilton | McLaren - Mercedes | 78.0 | +4.095 | 2.0 |
| Felipe Massa | Ferrari | 78.0 | +1:09.114 | 3.0 |
| Giancarlo Fisichella | Renault | 77.0 | +1 Lap | 4.0 |
| Robert Kubica | BMW Sauber | 77.0 | +1 Lap | 8.0 |
| Nick Heidfeld | BMW Sauber | 77.0 | +1 Lap | 7.0 |
| Alexander Wurz | Williams - Toyota | 77.0 | +1 Lap | 11.0 |
| Kimi Räikkönen | Ferrari | 77.0 | +1 Lap | 16.0 |
| Scott Speed | Toro Rosso - Ferrari | 77.0 | +1 Lap | 18.0 |
| Rubens Barrichello | Honda | 77.0 | +1 Lap | 9.0 |
| Jenson Button | Honda | 77.0 | +1 Lap | 10.0 |
| Nico Rosberg | Williams - Toyota | 77.0 | +1 Lap | 5.0 |
| Heikki Kovalainen | Renault | 76.0 | Engine | 15.0 |
| David Coulthard | Red Bull - Renault | 76.0 | +2 Laps | 13.0 |
| Jarno Trulli | Toyota | 76.0 | +2 Laps | 14.0 |
| Ralf Schumacher | Toyota | 76.0 | +2 Laps | 20.0 |
| Takuma Sato | Super Aguri - Honda | 76.0 | +2 Laps | 21.0 |
| Anthony Davidson | Super Aguri - Honda | 76.0 | +2 Laps | 17.0 |
| Christijan Albers | Spyker - Ferrari | 70.0 | Driveshaft | 22.0 |
| Adrian Sutil | Spyker - Ferrari | 53.0 | Accident | 19.0 |
| Mark Webber | Red Bull - Renault | 17.0 | Gearbox | 6.0 |
| Vitantonio Liuzzi | Toro Rosso - Ferrari | 2.0 | Accident | 12.0 |
Question:
Tell me the average Laps for grid of 6
Answer:
17.0