| 2019 | 2020 | 2021 | 2022 | 2023 | Change 23/22 | % Change 23/22 | Avg. Gr. (%) | Mean | SD | Min | Max | CV | Share in 2023 (%) | |
| Tax | 158.37 | 155.51 | 172.57 | 159.15 | 153.16 | -5.99 | -3.76 | -0.83 | 159.75 | 7.55 | 153.16 | 172.57 | 0.05 | 50.56 |
| Industry margin | 34.61 | 36.08 | 45.45 | 71.55 | 64.90 | -6.65 | -9.29 | 17.02 | 50.52 | 16.86 | 34.61 | 71.55 | 0.33 | 21.42 |
| Crude CIF price | 65.58 | 44.62 | 71.20 | 104.66 | 84.89 | -19.77 | -18.89 | 6.66 | 74.19 | 22.36 | 44.62 | 104.66 | 0.30 | 28.02 |
| Composite barrel | 258.56 | 236.21 | 289.22 | 335.36 | 302.95 | -32.41 | -9.66 | 4.04 | 284.46 | 38.58 | 236.21 | 335.36 | 0.14 | 100.00 |