| 2019 | 2020 | 2021 | 2022 | 2023 | Change 23/22 | % Change 23/22 | Avg. Gr. (%) | Mean | SD | Min | Max | CV | Share in 2023 (%) | |
| Tax | 109.91 | 103.90 | 112.79 | 109.18 | 112.00 | 2.82 | 2.58 | 0.47 | 109.56 | 3.49 | 103.90 | 112.79 | 0.03 | 44.27 |
| Industry margin | 42.05 | 43.37 | 49.85 | 68.61 | 57.19 | -11.42 | -16.64 | 7.99 | 52.21 | 10.96 | 42.05 | 68.61 | 0.21 | 22.61 |
| Crude CIF price | 64.62 | 43.97 | 69.90 | 99.84 | 83.80 | -16.04 | -16.07 | 6.71 | 72.43 | 20.96 | 43.97 | 99.84 | 0.29 | 33.12 |
| Composite barrel | 216.58 | 191.24 | 232.54 | 277.63 | 252.99 | -24.64 | -8.88 | 3.96 | 234.20 | 33.16 | 191.24 | 277.63 | 0.14 | 100.00 |