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COSTS OF SALES (Tables)
12 Months Ended
Dec. 31, 2020
COSTS OF SALES  
Schedule of Costs of Sales

    

2020

    

2019

    

2018

Direct costs of sales

 

(14,058)

  

(14,919)

 

(13,683)

Indirect costs of sales

 

(9,225)

  

(8,990)

 

(8,583)

Total costs of sales

 

(23,283)

  

(23,909)

 

(22,266)