| Monthly investment (%) | Frequency | Percentage (%) |
| Below 10% | 27 | 36 |
| 10% - 15% | 19 | 25 |
| 16% - 20% | 16 | 22 |
| 21% - 25% | 09 | 12 |
| Above 26% | 04 | 05 |
| Total | 75 | 100 |