| Value | Contractor | Consultant | Combined results | |||
| frequency | Valid (%) | frequency | Valid (%) | frequency | Valid (%) | |
| 0 | 15 | 78.95 | 13 | 86.67 | 28 | 82.355 |
| 1 | 4 | 21.05 | 2 | 13.33 | 6 | 17.65 |
| total | 19 | 100.0 | 15 | 100.0 | 34 | 100.00 |