| Similarity | Rank | |
|---|---|---|
| decades | 0.899 | 2346 |
| quarter-century | 0.892 | 79790 |
| decade's | 0.843 | 66905 |
| 1990s | 0.812 | 7471 |
| half-century | 0.812 | 46674 |
| years | 0.807 | 125 |
| mid-2000s | 0.805 | 94089 |
| 2000s | 0.803 | 26262 |
| mid-1990s | 0.800 | 35693 |
| 1990's | 0.783 | 20839 |
| 1980s | 0.782 | 7178 |
| nineties | 0.767 | 28357 |
| mid-1980s | 0.762 | 43287 |
| mid-1970s | 0.750 | 53815 |
| 1970s | 0.744 | 7314 |
| decade-long | 0.736 | 60294 |
| 1980's | 0.735 | 18127 |
| twenty-year | 0.729 | 97910 |
| '90s | 0.727 | 25014 |
| eighties | 0.720 | 24958 |
| 90s | 0.714 | 14490 |
| 1960s | 0.707 | 7911 |
| mid-1960s | 0.706 | 63672 |
| 40-year | 0.705 | 56085 |
| year | 0.702 | 144 |