Time (months) | 0 | 2 | 4 | 6 | 8 | 10 | 12 |
Exercise at 10 (British) | 125% | 126% | 128% | 129% | 131% | 133% | 278% |
Selling at 10 (American) | 127% | 127% | 127% | 127% | 127% | 127% | 127% |
Exercise at 11 (British) | 100% | 98% | 96% | 93% | 87% | 73% | 0% |
Selling at 11 (American) | 100% | 98% | 95% | 91% | 84% | 70% | 0% |
Exercise at 12 (British) | 78% | 75% | 71% | 64% | 54% | 34% | 0% |
Selling at 12 (American) | 78% | 75% | 70% | 63% | 52% | 32% | 0% |
Exercise at 13 (British) | 60% | 56% | 51% | 43% | 32% | 14% | 0% |
Selling at 13 (American) | 60% | 56% | 50% | 42% | 31% | 13% | 0% |
Exercise at 14 (British) | 46% | 42% | 36% | 28% | 18% | 5% | 0% |
Selling at 14 (American) | 46% | 42% | 36% | 28% | 17% | 5% | 0% |
Exercise at 15 (British) | 35% | 31% | 25% | 18% | 9% | 2% | 0% |
Selling at 15 (American) | 36% | 31% | 25% | 18% | 9% | 2% | 0% |