| Similarity | Rank | |
|---|---|---|
| 1970's | 0.978 | 18387 |
| 1950's | 0.973 | 20985 |
| 1960s | 0.966 | 7911 |
| 1950s | 0.964 | 9648 |
| 1970s | 0.947 | 7314 |
| 1980's | 0.946 | 18127 |
| 1940's | 0.944 | 33633 |
| 1940s | 0.941 | 16777 |
| 1930's | 0.924 | 26347 |
| mid-1960s | 0.922 | 63672 |
| mid-1950s | 0.913 | 83299 |
| 1930s | 0.911 | 11976 |
| 1980s | 0.908 | 7178 |
| 1920's | 0.907 | 30219 |
| 1920s | 0.902 | 14792 |
| mid-1970s | 0.898 | 53815 |
| 60's | 0.897 | 17173 |
| 1990's | 0.894 | 20839 |
| seventies | 0.892 | 24080 |
| sixties | 0.890 | 21797 |
| 70's | 0.885 | 14816 |
| '60s | 0.883 | 25607 |
| 70s | 0.881 | 14122 |
| 60s | 0.881 | 15489 |
| '70s | 0.878 | 23330 |