Note 2 – Costs divided by type of expence
| Group | 2016 | 2015 |
| Material costs | -2,912 | -3,230 |
| Salaries, other remuneration and social security expenses | -408 | -400 |
| Other external costs | -476 | -456 |
| Depreciation and amortization | -64 | -186 |
| Other operating expenses | -6 | -4 |
| Total | -3,866 | -4,276 |
The specification of costs divided by type of expense refers to items included in the Income Statement under cost of goods sold, selling expenses, administrative expenses and other operating expenses.