UPU: Monthly Postal Trade

Postal operators around the globe communicate on the status of mail shipments using Electronic Data Interchange (EDI) messages. The UPU develops, enacts, and monitors the usage standards to facilitate the exchange of operational information between postal operators. Monthly estimates of postal trade were computed by extrapolating and aggregating key fields from EDI messages on postal receptacles identifiers (description available here, which indicate the weight, origin and destination of outgoing mail.)