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Cash and cash equivalents (Tables)
12 Months Ended
Dec. 31, 2021
Cash and cash equivalents  
Summary of cash and cash equivalents

    

2021

    

2020

Cash in banks

Ps.

9,543,860

Ps.

6,907,295

Short-term investments

5,558,131

3,068,618

Restricted funds held in trust related to debt service reserves

147,415

91,040

Cash on hand

5,470

36,432

Total cash, cash equivalents and restricted cash

Ps.

15,254,876

Ps.

10,103,385