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Other Operating Income
 12 Months Ended
Dec. 31, 2020
Other income [Abstract]  
Other Operating Income
34. Other operating income
 
   
2020
   
2019
   
2018
 
Adjustments and interest on miscellaneous receivables
   1,882,344    1,729,851    1,039,065 
Rental of safe deposit boxes
   1,122,188    961,725    1,124,781 
Services rendered
   270,110    300,983    323,403 
Proceeds from electronic transactions
   186,922    199,891    255,558 
Income related to foreign trade
   167,080    433,560    462,620 
Gain from the sale of
non-current
assets held for sale
   —     5,202,018    —   
Other operating income
   2,694,336    3,154,173    1,207,177 
   
 
 
   
 
 
   
 
 
 
TOTAL
  
 
    6,322,980
 
  
 
  11,982,201
 
  
 
    4,412,604