Table 1 Demographic distributions
| Variable | Number | Percentage (%) |
|---|---|---|
| Gender | ||
| Male | 2131 | 47.2 |
| Female | 2383 | 52.8 |
| Age (years) | ||
| 20–29 | 574 | 12.7 |
| 30–39 | 790 | 17.5 |
| 40–49 | 994 | 22.0 |
| 50–59 | 936 | 20.7 |
| 60–69 | 1220 | 27.0 |
| Education | ||
| High school, vocational school or less | 1976 | 43.8 |
| Junior college, College, or above | 2523 | 55.9 |
| Other | 15 | 0.3 |