The age range information of AIP4 students:

Under 10 0.0% 0 Under 20 0.0% 0 Under 30 28.6% 8 Under 40 25.0% 7 Under 50 28.6% 8 Under 60 10.7% 3 Under 70 3.5% 1 70 and over 3.5% 1