Used Motor Oil | Frequency | Percent | Rank |
21 liters and above | 10 | 13% | 3 |
15 - 20 liters | 35 | 46% | 1 |
10 - 14 liters | 19 | 24% | 2 |
5 - 9 liters | 7 | 9% | 4 |
4 liters - below | 6 | 8% | 5 |
Total | 77 | 100% |