| Time (months) | 0 | 2 | 4 | 6 | 8 | 10 | 12 |
| Exercise at 10 (British) | 125% | 126% | 128% | 129% | 131% | 133% | 278% |
| Exercise at 10 (American) | 127% | 127% | 127% | 127% | 127% | 127% | 127% |
| Exercise at b (British) | 137% | 154% | 173% | 193% | 217% | 243% | 278% |
| Exercise at b (American) | 127% | 127% | 127% | 127% | 127% | 127% | 127% |
| Exercise at 8 (British) | 186% | 192% | 200% | 211% | 226% | 252% | 278% |
| Exercise at 8 (American) | 127% | 127% | 127% | 127% | 127% | 127% | 127% |
| Exercise at 6 (British) | 243% | 250% | 258% | 266% | 274% | 278% | 278% |
| Exercise at 6 (American) | 127% | 127% | 127% | 127% | 127% | 127% | 127% |
| Exercise at 4 (British) | 274% | 276% | 277% | 278% | 278% | 278% | 278% |
| Exercise at 4 (American) | 127% | 127% | 127% | 127% | 127% | 127% | 127% |
| Exercise at 2 (British) | 278% | 278% | 278% | 278% | 278% | 278% | 278% |
| Exercise at 2 (American) | 127% | 127% | 127% | 127% | 127% | 127% | 127% |