v3.20.1

Staff costs | 12 Months Ended
--- | ---
Dec. 31, 2019
Staff costs |
Staff costs | 8. Staff costs The following table illustrates the personnel costs for the years 2019, 2018 and 2017.
|  | Year ended December 31,
|  | 2019 |  | 2018 |  | 2017
|  |  | (Euro, in thousands)
Wages and salaries |  | € | (116,408) |  | € | (61,619) |  | € | (46,677)
Social security costs |  |  | (16,858) |  |  | (11,003) |  |  | (9,081)
Pension costs |  |  | (4,715) |  |  | (2,994) |  |  | (2,175)
Other personnel costs |  |  | (39,109) |  |  | (27,375) |  |  | (16,465)
Total personnel costs |  | € | (177,090) |  | € | (102,991) |  | € | (74,398)
The other personnel costs mainly related to costs for warrants granted of €32.5 million (2018: €21.3 million, 2017: €11.8 million). For the costs of warrants granted, see note 28.

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