| Q1 | Q20 | ||||
| No | Slight | Moderate | Strong | Total | |
| No | 110 | 200 | 97 | 31 | 438 |
| Slight | 22 | 69 | 68 | 16 | 175 |
| Moderate | 2 | 13 | 10 | 6 | 31 |
| Strong | 1 | 0 | 1 | 1 | 3 |
| Total | 135 | 282 | 176 | 54 | 647 |