| Similarity | Rank | |
|---|---|---|
| mid-1980s | 0.974 | 43287 |
| mid-1960s | 0.966 | 63672 |
| 1970s | 0.965 | 7314 |
| 1980s | 0.953 | 7178 |
| mid-1950s | 0.952 | 83299 |
| mid-1990s | 0.937 | 35693 |
| 1960s | 0.931 | 7911 |
| 1990s | 0.928 | 7471 |
| 1970's | 0.927 | 18387 |
| 1980's | 0.919 | 18127 |
| 1990's | 0.910 | 20839 |
| 1950s | 0.903 | 9648 |
| 1960's | 0.898 | 19445 |
| 1940s | 0.882 | 16777 |
| 1930s | 0.867 | 11976 |
| mid-2000s | 0.863 | 94089 |
| 2000s | 0.851 | 26262 |
| 1950's | 0.847 | 20985 |
| 1920s | 0.839 | 14792 |
| 1940's | 0.831 | 33633 |
| 1930's | 0.828 | 26347 |
| nineties | 0.825 | 28357 |
| 1970 | 0.821 | 8821 |
| 1980 | 0.820 | 7432 |
| 1979 | 0.814 | 8473 |