| 2019 | 2020 | 2021 | 2022 | 2023 | Change 23/22 | % Change 23/22 | Avg. Gr. (%) | Mean | SD | Min | Max | CV | Share in 2023 (%) | |
| Tax | 106.67 | 105.14 | 115.92 | 106.32 | 110.05 | 3.73 | 3.51 | 0.78 | 108.82 | 4.37 | 105.14 | 115.92 | 0.04 | 44.16 |
| Industry margin | 38.83 | 39.44 | 44.81 | 56.39 | 55.40 | -0.99 | -1.76 | 9.29 | 46.97 | 8.48 | 38.83 | 56.39 | 0.18 | 22.23 |
| Crude CIF price | 63.70 | 43.45 | 69.95 | 100.51 | 83.74 | -16.77 | -16.68 | 7.08 | 72.27 | 21.44 | 43.45 | 100.51 | 0.30 | 33.60 |
| Composite barrel | 209.20 | 188.03 | 230.68 | 263.22 | 249.19 | -14.03 | -5.33 | 4.47 | 228.06 | 30.20 | 188.03 | 263.22 | 0.13 | 100.00 |