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Introduction (Tables)
12 Months Ended
Dec. 31, 2021
Disclosure of changes in accounting policies, accounting estimates and errors [Abstract]  
Foreign exchange rates
The following table presents functional currency translation rates for the Group’s locations to the US dollar on December 31, 2021, 2020 and 2019 and the average rates for the years ended December 31, 2021, 2020 and 2019.
Exchange Rates to the US DollarFunctional Currency2021 Year-end Rate2020 Year-end RateChange %2021 Average Rate2020 Average RateChange %2019 Average Rate
BoliviaBoliviano (BOB)6.91 6.91 — %6.91 6.91 — %6.91 
ColombiaPeso (COP)3,981 3,433 (13.8)%3,756 3,695 (1.6)%3,296 
Costa RicaCosta Rican Colon (CRC)645 617 (4.3)%625 590 (5.6)%588 
El SalvadorUS dollarn/an/an/an/an/an/an/a
GhanaCedi (GHS)6.18 5.87 (5.1)%5.94 5.75 (3.2)%5.33 
GuatemalaQuetzal (GTQ)7.72 7.79 1.0 %7.74 7.73 (0.1)%7.71 
HondurasLempira (HNL)24.43 24.20 (1.0)%24.12 24.65 2.2 %24.59 
LuxembourgEuro (EUR)0.88 0.82 (6.9)%0.85 0.87 3.4 %0.89 
NicaraguaCordoba (NIO)35.52 34.82 (2.0)%35.17 34.34 (2.4)%33.12 
PanamaBalboa (B/.) (i)n/an/an/an/an/an/an/a
ParaguayGuarani (PYG)6,886 6,900 0.2 %6,790 6,758 (0.5)%6,232 
SwedenKrona (SEK)9.05 8.23 (9.1)%8.59 9.16 6.6 %9.43 
TanzaniaShilling (TZS)2,305 2,319 0.6 %2,313 2,312 — %2,304 
United KingdomPound (GBP)0.74 0.73 (1.0)%0.73 0.77 6.2 %0.78 
(i) the balboa is tied to the United States dollar at an exchange rate of 1:1.