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26. Salaries and social security taxes payable (Tables)
 12 Months Ended
Dec. 31, 2019
Salaries And Social Security Taxes Payable  
Salaries and social security taxes payable
     12.31.19    12.31.18
Non-current        
Early retirements payable                39,495                22,887
Seniority-based bonus              201,075              227,353
Total non-current              240,570              250,240
         
Current        
Salaries payable and provisions           2,104,368           2,428,861
Social security payable              274,583              232,403
Early retirements payable                28,101                15,759
Total current           2,407,052           2,677,023
Salaries and social security taxes charged to profit or loss
    2019   2018   2017
Salaries           6,299,020           6,668,287           7,530,793
Social security taxes           2,449,619           2,593,223           2,928,640
Total salaries and social security taxes           8,748,639           9,261,510         10,459,433