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 |
| --- | --- | --- | --- | --- |
| Johnny Herbert | Benetton - Renault | 61 | 1:34:35.093 | 5 |
| Jean Alesi | Ferrari | 61 | +16.479 | 6 |
| David Coulthard | Williams - Renault | 61 | +23.888 | 3 |
| Olivier Panis | Ligier - Mugen-Honda | 61 | +1:33.168 | 13 |
| Mark Blundell | McLaren - Mercedes | 61 | +1:48.172 | 10 |
| Heinz-Harald Frentzen | Sauber - Ford | 60 | +1 lap | 12 |
| Pierluigi Martini | Minardi - Ford | 60 | +1 lap | 15 |
| Mika Salo | Tyrrell - Yamaha | 60 | +1 lap | 23 |
| Jean-Christophe Boullion | Sauber - Ford | 60 | +1 lap | 16 |
| Luca Badoer | Minardi - Ford | 60 | +1 lap | 18 |
| Rubens Barrichello | Jordan - Peugeot | 59 | Collision | 9 |
| Bertrand Gachot | Pacific - Ford | 58 | +3 laps | 21 |
| Roberto Moreno | Forti - Ford | 48 | Engine | 22 |
| Michael Schumacher | Benetton - Renault | 45 | Collision | 2 |
| Damon Hill | Williams - Renault | 45 | Collision | 1 |
| Massimiliano Papis | Footwork - Hart | 28 | Spun off | 17 |
| Ukyo Katayama | Tyrrell - Yamaha | 22 | Out of fuel | 14 |
| Andrea Montermini | Pacific - Ford | 21 | Spun off | 24 |
| Mika Häkkinen | McLaren - Mercedes | 20 | Electrical | 8 |
| Gerhard Berger | Ferrari | 20 | Wheel | 4 |
| Martin Brundle | Ligier - Mugen-Honda | 16 | Spun off | 11 |
| Taki Inoue | Footwork - Hart | 16 | Spun off | 19 |
| Pedro Diniz | Forti - Ford | 13 | Gearbox | 20 |
| Eddie Irvine | Jordan - Peugeot | 2 | Electrical | 7 |
| Source: | Source: | Source: | Source: | Source: |
Question:
How many laps does jean-christophe boullion have with a time/retired of +1 lap?
Answer:
60.0