| Variable | Number | Percentage |
| Gender |
|
|
| Male | 64 | 35.8 |
| Female | 115 | 64.2 |
| Age |
|
|
| Below 30 years | 106 | 58.9 |
| 31 - 40 years | 43 | 23.9 |
| Over 41 years | 31 | 17.2 |
| Education level |
|
|
| High school | 18 | 10.1 |
| College | 121 | 67.6 |
| Graduate school | 40 | 22.3 |
| Tenure |
|
|
| Below 1 year | 41 | 22.9 |
| 1 - 3 years | 60 | 33.5 |
| 4 - 9 years | 41 | 22.9 |
| Above 10 years | 37 | 20.7 |
| Number of employees |
|
|
| Less than 5 | 56 | 31.6 |
| 6 - 15 | 101 | 57.1 |
| More than 16 | 20 | 11.3 |
| Working hours per day |
|
|
| Less than 8 hours | 55 | 30.9 |
| 9 - 10 hours | 97 | 54.5 |
| Above 11 hours | 26 | 14.6 |