Retirement Ratio

until 1977 Brazilian GP

Ignore Indy 500 races
Ignore non-championship races
Note: records involving non-championship races may be inaccurate due to incomplete data.

Finishing position:

Pos	Sponsor Industry	Retirement Ratio	Retirements	Entries
1	Diving equipment	75.00%	6	8
2	Art	66.67%	10	15
3	Refrigeration	60.00%	3	5
4	Electronics	58.82%	10	17
5	Tools	54.84%	34	62
6	Steering wheel	54.55%	36	66
7	Ceramics	54.17%	13	24
8	Drinks	50.77%	33	65
9	Finance	49.02%	25	51
10	Alcohol	47.20%	76	161
11	Food	46.77%	29	62
12	Modelmakers	45.45%	5	11
13	Tourism	43.75%	14	32
14	Brakes	43.68%	76	174
15	Nuts and bolts	43.21%	35	81
16	Tobacco	42.17%	326	773
17	Oil	41.90%	872	2081
18	Caravan manufacture	40.98%	25	61
19	Tyres	40.38%	567	1404
20	Toys	40.32%	25	62
21	Metal working	40.00%	14	35
22	Spark plugs	38.80%	227	585
23	Safety systems	38.24%	13	34
24	Car manufacture	37.88%	136	359
25	Contraception	37.50%	6	16
25	Vehicle manufacture	37.50%	3	8
27	Dampers	34.38%	22	64
28	Sugar	33.33%	13	39
29	Watches	31.10%	79	254
30	Toiletries	29.53%	44	149
31	Motor industry	28.72%	54	188
32	Publishing	25.00%	4	16
32	Vehicle hire	25.00%	1	4
34	Cleaning	20.59%	7	34

Finishing position: