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 |
| --- | --- | --- | --- | --- |
| Michael Schumacher | Ferrari | 53.0 | 1:27:31.638 | 1.0 |
| Mika Häkkinen | McLaren - Mercedes | 53.0 | +3.810 | 3.0 |
| Ralf Schumacher | Williams - BMW | 53.0 | +52.432 | 7.0 |
| Jos Verstappen | Arrows - Supertec | 53.0 | +59.938 | 11.0 |
| Alexander Wurz | Benetton - Playlife | 53.0 | +1:07.426 | 13.0 |
| Ricardo Zonta | BAR - Honda | 53.0 | +1:09.293 | 17.0 |
| Mika Salo | Sauber - Petronas | 52.0 | +1 Lap | 15.0 |
| Pedro Diniz | Sauber - Petronas | 52.0 | +1 Lap | 16.0 |
| Marc Gené | Minardi - Fondmetal | 52.0 | +1 Lap | 21.0 |
| Gastón Mazzacane | Minardi - Fondmetal | 52.0 | +1 Lap | 22.0 |
| Giancarlo Fisichella | Benetton - Playlife | 52.0 | +1 Lap | 9.0 |
| Jean Alesi | Prost - Peugeot | 51.0 | +2 Laps | 19.0 |
| Nick Heidfeld | Prost - Peugeot | 15.0 | Spun off | 20.0 |
| Jacques Villeneuve | BAR - Honda | 14.0 | Electrical | 4.0 |
| Jenson Button | Williams - BMW | 10.0 | Accident | 12.0 |
| Johnny Herbert | Jaguar - Cosworth | 1.0 | Collision damage | 18.0 |
| Rubens Barrichello | Ferrari | 0.0 | Collision | 2.0 |
| David Coulthard | McLaren - Mercedes | 0.0 | Collision | 5.0 |
| Jarno Trulli | Jordan - Mugen-Honda | 0.0 | Collision | 6.0 |
| Heinz-Harald Frentzen | Jordan - Mugen-Honda | 0.0 | Collision | 8.0 |
| Pedro de la Rosa | Arrows - Supertec | 0.0 | Collision | 10.0 |
| Eddie Irvine | Jaguar - Cosworth | 0.0 | Spun off | 14.0 |
Question:
What is the average Laps for a grid smaller than 17, and a Constructor of williams - bmw, driven by jenson button?
Answer:
10.0