Characteristics | Frequency | Percentage % | |
Gender | Male | 457 | 80.7 |
| Female | 109 | 19.3 |
Age | <15 | 64 | 11.3 |
| 16 - 20 | 344 | 60.8 |
| 21 - 25 | 37 | 6.5 |
| 26 - 30 | 58 | 10.2 |
| 31 - 35 | 29 | 5.1 |
| >35 | 34 | 6.0 |
Life stage | Secondary school | 70 | 12.4 |
| High school | 276 | 48.8 |
| College/university | 125 | 22.1 |
| Graduated | 95 | 16.8 |
Work status | None | 44 | 7.8 |
| Study in school | 414 | 73.1 |
| Serve onboard or onshore | 108 | 19.1 |
Specialized skills | None | 123 | 21.7 |
| Navigation | 220 | 38.9 |
| Engine | 215 | 38.0 |
| Others | 8 | 1.4 |
Sea age | <1 | 438 | 77.4 |
| 1 - 3 | 63 | 11.1 |
| 4 - 6 | 36 | 6.4 |
| >6 | 29 | 5.1 |