The data from correos.gob.bo, the Bolivian postal agency was put on sale by a seller with a good reputation on a popular hacking forum.
The seller also provided a sample of data and claimed to have 3 sql files, totalling 1.47 GB of data.
Source: https://www.databreaches.net/bits-n-pieces-trozos-y-piezas-5/
"id": "COR202781122",
"linkid": "correos",
"type": "Breach",
"date": "08/2022",
"severity": "100",
"impact": "6",
"explanation": "Attack threatening the economy of a geographical region"