Students.
Besides working in the evenings during the week and on weekends from early in the morning to late in the evening, I have also taught at a local middle school since coming over here. They are all eighth grade students. I had 20 classes of around 70 students each the first year for half a year. The next year was a whole year with 20 classes, but only about 60 students. This year there are only 18 classes and the student count is still around 60 in each class. I think the number of students is getting less because of the one child policy.