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Fee and Commission Expense (Tables)
 12 Months Ended
Dec. 31, 2019
Fee and commission expense [abstract]  
Table of Fee and Commission Expense
   
2019
   
2018
   
2017
 
For credit and debit cards
   6,072,334    5,282,111    4,273,979 
For promotions
   1,927,178    2,001,304    1,500,992 
Other commission expenses
   1,073,701    935,567    1,513,332 
For foreign trade transactions
   356,640    241,249    219,696 
Linked to transactions with securities
   2,937    2,866    2,674 
  
 
 
   
 
 
   
 
 
 
TOTAL
  
 
9,432,790
 
  
 
8,463,097
 
  
 
7,510,673