What is an example of literacy rates?

Literacy rates are expressed as the percentage of a population above a certain age that can read and write. Here's an example:

"The literacy rate in Country X for adults aged 15 and above is 98%."

This statement means that 98% of the adult population (aged 15 and older) in Country X possesses basic reading and writing skills. The remaining 2% are considered illiterate. Different countries use different age thresholds (sometimes 15, sometimes 18) so it is important to note the specified age group when comparing literacy rates.