1 Intangible fixed assets
| | 2018 | 2017 |
Book value as at 1 January | 571 | 517 |
Investments | 1,079 | 328 |
Depreciations | (609) | (274) |
Book value as at 31 December | 1,041 | 571 |
| | | |
Purchase value | 9,183 | 8,104 |
Derecognition of old hardware and software | ( 7,220) | - |
Cumulative depreciations | (922) | (7,533) |
Book value as at 31 December | 1,041 | 571 |