| Value | Category | Cases | |
|---|---|---|---|
| 1 | BP | 1121 |
14.2%
|
| 2 | Caltex | 1363 |
17.3%
|
| 3 | Engen | 2728 |
34.6%
|
| 4 | Exel | 54 |
0.7%
|
| 5 | Sasol | 806 |
10.2%
|
| 6 | Shell | 1086 |
13.8%
|
| 7 | Total | 496 |
6.3%
|
| 8 | Other | 178 |
2.3%
|
| 9 | Do not know | 60 |
0.8%
|
| Sysmiss | 17692 |