What the mean number lap where Time/retired had been waters leak and grid number had been bigger 12?
Driver Constructor Laps Time/Retired Grid
2001 Malaysian Grand Prix
1123412
text text real text real
2-1123412-2
Race
Race
Michael Schumacher Ferrari 55 1:47:34.801 1
Rubens Barrichello Ferrari 55 +23.660 2
David Coulthard McLaren - Mercedes 55 +28.555 8
Heinz-Harald Frentzen Jordan - Honda 55 +46.543 9
Ralf Schumacher Williams - BMW 55 +48.233 3
Mika Häkkinen McLaren - Mercedes 55 +48.606 4
Jos Verstappen Arrows - Asiatech 55 +1:21.560 18
Jarno Trulli Jordan - Honda 54 +1 Lap 5
Jean Alesi Prost - Acer 54 +1 Lap 13
Luciano Burti Jaguar - Cosworth 54 +1 Lap 15
Jenson Button Benetton - Renault 53 +2 Laps 17
Gastón Mazzacane Prost - Acer 53 +2 Laps 19
Fernando Alonso Minardi - European 52 +3 Laps 21
Tarso Marques Minardi - European 51 +4 Laps 20
Giancarlo Fisichella Benetton - Renault 31 Fuel Pressure 16
Jacques Villeneuve BAR - Honda 3 Spun off 7
Nick Heidfeld Sauber - Petronas 3 Spun off 11
Enrique Bernoldi Arrows - Asiatech 3 Spun off 22
Juan Pablo Montoya Williams - BMW 3 Spun off 6
Eddie Irvine Jaguar - Cosworth 3 Water Leak 12
Olivier Panis BAR - Honda 1 Oil Leak 10
Kimi Räikkönen Sauber - Petronas 0 Driveshaft 14
SELECT AVG Laps FROM table WHERE Time/Retired = water leak AND Grid > 12
water leak 12