| Overall intersected time periods | Related expressions | Related ratio results |
| 100% | Full intersection | 10% |
| 75% - 99% | Large intersection | 8% |
| 50% - 75% | Moderate intersection | 6% |
| 25% - 50% | Partial intersection | 4% |
| 1% - 25% | Small intersection | 2% |
| 0% | Zero intersection | 0% |