|
| Before | After | ||
| Frequency | Percent | Frequency | Percent | |
| High extent | 0 | 0.00 | 214 | 73.29 |
| Moderate | 98 | 33.56 | 78 | 26.71 |
| Low extent | 194 | 66.44 | 0 | 0.00 |
| Total | 292 | 100 | 292 | 100 |