| Variables | Category | Frequency | Proportion (%) |
| Gender | Male | 110 | 50.9% |
| Female | 106 | 49.1% | |
| Age | Under 20 years old | 5 | 2.3% |
| 21 - 30 years old | 69 | 31.9% | |
| 31 - 40 years old | 46 | 21.3% | |
| 41 - 50 years old | 48 | 22.2% | |
| Over 50 years old | 48 | 22.2% | |
| Educational level | High school and below | 31 | 14.4% |
| Junior college | 78 | 36.1% | |
| Bachelor | 86 | 39.8% | |
| Master | 21 | 9.7% | |
| Position grade | Basic level | 138 | 63.9% |
| Middle level | 64 | 29.6% | |
| High level | 14 | 6.5% |