The age range information of AIP4 students:

•     Under 10       0.0%     0
•     Under 20       0.0%     0
•     Under 30     29.6%     8
•     Under 40     25.9%     7
•     Under 50     29.6%     8
•     Under 60     11.1%     3
• 70 and over       3.7%     1