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See also: | Drivers, Teams, Entrants, Car Models, Car Manufacturers, Engine Manufacturers, Tyre Manufacturers, Lubricant Manufacturers, Car Numbers, Sponsors, Designers |
Retirement Ratio
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until 1967 Canadian GP
Ignore Indy 500 races
Include non-championship races
Pos | Sponsor Industry | Retirement Ratio | Retirements | Entries |
1 | Oil | 35.71% | 5 | 14 |
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