| Similarity | Rank | |
|---|---|---|
| mid-1970 | 0.811 | 12406 |
| mid-1950s | 0.786 | 24366 |
| mid-to-late | 0.776 | 71501 |
| 1970 | 0.775 | 2583 |
| mid-1970s | 0.773 | 56155 |
| 1960 | 0.763 | 2807 |
| mid-1980 | 0.759 | 11219 |
| mid-1960 | 0.757 | 49947 |
| interwar | 0.757 | 19545 |
| 1980 | 0.752 | 2404 |
| birth-rate | 0.752 | 31977 |
| 1950 | 0.749 | 3691 |
| demand-management | 0.749 | 88563 |
| 1900 | 0.746 | 20137 |
| de-industrialization | 0.744 | 52969 |
| post-1945 | 0.740 | 34032 |
| urbanisation | 0.739 | 28493 |
| mid-1980s | 0.737 | 48354 |
| westernization | 0.736 | 75959 |
| 1880 | 0.736 | 9812 |
| syndicalism | 0.735 | 59713 |
| 1930 | 0.733 | 4100 |
| trickle-down | 0.730 | 66936 |
| politicisation | 0.729 | 49318 |
| mid-1930s | 0.728 | 38645 |