| Frequency | Percentage | Cumulative percentage |
Illiteracy | 5 | 2.3 | 2.3 |
Primary school | 10 | 4.5 | 6.8 |
Junior high school | 45 | 20.5 | 27.3 |
High school or technical secondary school | 110 | 50.0 | 77.3 |
Junior college and above | 50 | 22.7 | 100.0 |
In total | 220 | 100.0 |
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