| Similarity | Rank | |
|---|---|---|
| mid-1960s | 0.811 | 19473 |
| 1970 | 0.772 | 2583 |
| 1980 | 0.771 | 2404 |
| interwar | 0.763 | 19545 |
| mid-to-late | 0.756 | 71501 |
| mid-1930s | 0.754 | 38645 |
| mid-1980 | 0.748 | 11219 |
| 1960 | 0.735 | 2807 |
| mid-1960 | 0.735 | 49947 |
| export-lead | 0.732 | 72229 |
| slow-down | 0.731 | 50297 |
| birth-rate | 0.729 | 31977 |
| mid-1950s | 0.728 | 24366 |
| 1950 | 0.728 | 3691 |
| 1930 | 0.726 | 4100 |
| mid-1970s | 0.710 | 56155 |
| mid-1980s | 0.708 | 48354 |
| stagflation | 0.707 | 46761 |
| inter-war | 0.706 | 11074 |
| meiji | 0.704 | 40563 |
| nuwm | 0.704 | 50512 |
| 1-point | 0.700 | 87637 |
| post-second | 0.698 | 71536 |
| deregulatory | 0.693 | 60203 |
| post-1945 | 0.692 | 34032 |