| | December 31, 2017 | | December 31, 2016 | | December 31, 2015 | | |||
Wages and salaries | | | 16,191 | | | 16,132 | | | 15,500 | |
Payroll taxes | | | 2,629 | | | 2,244 | | | 2,264 | |
Personnel benefits | | | 5,442 | | | 3,090 | | | 8,613 | |
Sharebased payments | | | 3,391 | | | 3,730 | | | 4,058 | |
Total | | | 27,653 | | | 25,196 | | | 30,435 | |