| Administrative expenses by type | 1 January – 31 December 2018 | 1 January – 31 December 2017 (restated) |
| Consumption of materials and energy | 245 | 226 |
| Third party services | 1,380 | 1,186 |
| Taxes and charges | 82 | 61 |
| Employee expenses | 3,742 | 2,922 |
| Depreciation of property, plant and equipment | 348 | 270 |
| Amortization of intangible assets | 293 | 210 |
| Compensation of group insurance administrators in work establishments | 205 | 212 |
| Other, including: | 314 | 270 |
| - advertising | 230 | 171 |
| - other | 84 | 99 |
| Total administrative expenses | 6,609 | 5,357 |