What the total amount grid when the lap amount had been like smaller 68 and times/retired have been injection?
Driver Constructor Laps Time/Retired Grid
1967 Italian Grand Prix
1122373
text text real text real
2-1122373-1
Classification
Classification
John Surtees Honda 68 1:43:45.0 9
Jack Brabham Brabham - Repco 68 + 0.2 2
Jim Clark Lotus - Ford 68 + 23.1 1
Jochen Rindt Cooper - Maserati 68 + 56.6 11
Mike Spence BRM 67 + 1 Lap 12
Jacky Ickx Cooper - Maserati 66 + 2 Laps 15
Chris Amon Ferrari 64 + 4 Laps 4
Graham Hill Lotus - Ford 58 Engine 8
Jo Siffert Cooper - Maserati 50 Accident 13
Giancarlo Baghetti Lotus - Ford 50 Engine 17
Bruce McLaren McLaren - BRM 46 Engine 3
Jo Bonnier Cooper - Maserati 46 Overheating 14
Jackie Stewart BRM 45 Engine 7
Denny Hulme Brabham - Repco 30 Overheating 6
Guy Ligier Brabham - Repco 26 Engine 18
Chris Irwin BRM 16 Injection 16
Ludovico Scarfiotti Eagle - Weslake 5 Engine 10
Dan Gurney Eagle - Weslake 4 Engine 5
SELECT SUM Grid FROM table WHERE Laps < 68 AND Time/Retired = injection
68 injection