| Item | Category | Number | Proportion (%) |
| Educational level | Undergraduate institutions | 7 | 13.46 |
| Higher vocational colleges | 45 | 86.54 | |
| Educational nature | Public institutions | 42 | 80.77 |
| Private institutions | 10 | 19.23 | |
| Type of institution | Aviation administration directly affiliated institutions | 4 | 7.69 |
| Non-aviation administration directly affiliated institutions | 48 | 92.31 |