About part time job

I have part time job now.　I wont to know what kind of part time job other people do. So I chose it.

1. Do you have part time job?
80% chose Yes.

2. What kind of job do you have?
Most of the students say service industry.

3. Why you don’t work part time job?
Most of the students say its bother some.

4. How many part-time jobs have you had a part-time job?
The average was three times jobs.