That's a document from
nine and a half years ago, and it states:
> It depends on the how much the flash has been used (P/E cycle used), type of flash, and storage
temperature. In MLC and SLC, this can be as low as 3 months and best case can be more than 10
years. The retention is highly dependent on temperature and workload.
Are there any modern sources provide more accurate stats? "3 months to 10 years" is so vague as to be useless.