81 people or 25.5% are 20–39 years old, and 115 people or 36.2% are 40–64 years old.
The provided information describes the age breakdown of a population, with 81 individuals representing 25.5% being between 20 and 39 years old, while 115 people represent 36.2% falling within the age range of 40 to 64 years old.