Table:
text: 1993 Japanese Grand Prix
Race
Race
Driver Constructor_ Laps Time_Retired Grid
Pedro Lamy Lotus - Ford 49 Accident 20
Derek Warwick Footwork - Mugen-Honda 48 Collision 7
Riccardo Patrese Benetton - Ford 45 Accident 10
Gerhard Berger Ferrari 40 Engine 5
Aguri Suzuki Footwork - Mugen-Honda 28 Spun off 9
Jean-Marc Gounon Minardi - Ford 26 Withdrew 24
Ukyo Katayama Tyrrell - Yamaha 26 Engine 13
Karl Wendlinger Sauber 25 Engine 16
Érik Comas Larrousse - Lamborghini 17 Engine 21
Michael Schumacher Benetton - Ford 10 Collision 4
Jean Alesi Ferrari 7 Engine 14
Andrea de Cesaris Tyrrell - Yamaha 0 Collision 18

Question: What are the average laps for Andrea de Cesaris in the 1993 Japanese Grand Prix?