If your file is an academic or economic review, it likely contains data on:
What is the of the file (e.g., a specific university, a government report, or a business)?
: Estimates of the "shadow economy" as a percentage of a country's GDP.
If you are looking for a review of a or a course assignment , could you clarify:
To provide a more precise review, please share the or the intended purpose of the document. Mercado negro (2016) - IMDb