Survey of Social Qualification among White-collar Workers (Engineers, Assistant Engineers, Engineer Trainees, Assistant Engineer Trainees), 1994

[Certified professional engineers]
A sample of 784, of whom 439 (56.0%) returned valid responses.
[Certified associate professional engineers]
A sample of 912, of whom 350 (38.4%) returned valid responses.

[Trainee for professional engineers]
A sample of 265, of whom 135 (50.9%) returned valid responses.

[Trainee for associate professional engineers]
A sample of 218, of whom 52 (23.9%) returned valid responses.

【认证专业工程师】样本总数为784名，其中439名（占比56.0%）提供了有效回应。
【认证助理专业工程师】样本总数为912名，其中350名（占比38.4%）提供了有效回应。
【专业工程师实习生】样本总数为265名，其中135名（占比50.9%）提供了有效回应。
【助理专业工程师实习生】样本总数为218名，其中52名（占比23.9%）提供了有效回应。