| Initiation stages | Effective (n) | Percentage (%) | Cumulative Percentage (%) |
| Stage 1 | 24 | 20.69 | 20.69 |
| Stage 2 | 36 | 31.03 | 51.72 |
| Stage 3 | 37 | 31.90 | 83.62 |
| Stage 4 | 19 | 16.38 | 100.00 |
| Total | 116 | 100.00 |