| Respondents’ monthly income | Willing to pay more | Not willing to pay more | ||
| Frequency | Percentage | Frequency | Percentage | |
| 0 - 100 $ | 25 | 22.1 | 88 | 77.9 |
| 101 - 200 $ | 51 | 51.5 | 48 | 48.5 |
| 201 - 300 $ | 38 | 44.2 | 48 | 55.8 |
| 301 - 400 $ | 14 | 73.7 | 5 | 26.3 |
| 401 - 500 $ | 14 | 60.9 | 9 | 39.1 |
| 501 - up $ | 16 | 80 | 4 | 20 |
| Total | 158 | 43.9 | 202 | 56.1 |
|
| X2 (5, N = 360) = 19.78, P < 0.01 | |||