| Willing to pay more | Not willing to pay more | ||
Respondents’ education | Frequency | Percentage | Frequency | Percentage |
Primary | 23 | 28.4 | 58 | 71.6 |
Secondary | 37 | 33.6 | 73 | 66.4 |
High school | 45 | 45.5 | 54 | 54.5 |
University | 53 | 75.7 | 17 | 24.3 |
Total | 158 | 43.9 | 202 | 56.1 |
| X2 (3, N = 360) = 41.48, P < 0.01 |