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 |
| --- | --- | --- | --- | --- |
| Mika Häkkinen | McLaren - Mercedes | 44.0 | 1:28:14.494 | 1.0 |
| Michael Schumacher | Ferrari | 44.0 | +1.104 | 4.0 |
| Ralf Schumacher | Williams - BMW | 44.0 | +38.096 | 6.0 |
| David Coulthard | McLaren - Mercedes | 44.0 | +43.281 | 5.0 |
| Jenson Button | Williams - BMW | 44.0 | +49.914 | 3.0 |
| Heinz-Harald Frentzen | Jordan - Mugen-Honda | 44.0 | +55.984 | 8.0 |
| Jacques Villeneuve | BAR - Honda | 44.0 | +1:12.380 | 7.0 |
| Johnny Herbert | Jaguar - Cosworth | 44.0 | +1:27.808 | 9.0 |
| Mika Salo | Sauber - Petronas | 44.0 | +1:28.670 | 18.0 |
| Eddie Irvine | Jaguar - Cosworth | 44.0 | +1:31.555 | 12.0 |
| Pedro Diniz | Sauber - Petronas | 44.0 | +1:34.123 | 15.0 |
| Ricardo Zonta | BAR - Honda | 43.0 | +1 Lap | 13.0 |
| Alexander Wurz | Benetton - Playlife | 43.0 | +1 Lap | 19.0 |
| Marc Gené | Minardi - Fondmetal | 43.0 | +1 Lap | 21.0 |
| Jos Verstappen | Arrows - Supertec | 43.0 | +1 Lap | 20.0 |
| Pedro de la Rosa | Arrows - Supertec | 42.0 | +2 Laps | 16.0 |
| Gastón Mazzacane | Minardi - Fondmetal | 42.0 | +2 Laps | 22.0 |
| Rubens Barrichello | Ferrari | 32.0 | Fuel pressure | 10.0 |
| Jean Alesi | Prost - Peugeot | 32.0 | Fuel pressure | 17.0 |
| Nick Heidfeld | Prost - Peugeot | 12.0 | Engine | 14.0 |
| Giancarlo Fisichella | Benetton - Playlife | 8.0 | Electrical | 11.0 |
| Jarno Trulli | Jordan - Mugen-Honda | 4.0 | Collision | 2.0 |
Question:
How many laps had a grid number of 7?
Answer:
44.0