| Similarity | Rank | |
|---|---|---|
| 1940 | 0.868 | 55737 |
| 1950 | 0.859 | 23208 |
| 1920 | 0.852 | 47729 |
| 1960 | 0.822 | 27261 |
| the_1920 | 0.766 | 50431 |
| of_the_1920 | 0.760 | 73122 |
| 1970 | 0.759 | 27604 |
| of_the_1930 | 0.757 | 48992 |
| and_1940 | 0.756 | 82992 |
| in_the_1930 | 0.752 | 14463 |
| the_1930 | 0.750 | 34500 |
| in_the_1920 | 0.746 | 18295 |
| and_1930 | 0.745 | 64056 |
| the_1940 | 0.731 | 73356 |
| of_the_1950 | 0.729 | 52245 |
| from_the_1950 | 0.727 | 96102 |
| 50 | 0.721 | 17439 |
| in_the_1940 | 0.718 | 24811 |
| the_1950 | 0.715 | 32477 |
| 60 | 0.714 | 23621 |
| during_the_1930 | 0.711 | 71151 |
| in_the_1950 | 0.708 | 10960 |
| 1980 | 0.688 | 35792 |
| '60s | 0.686 | 70225 |
| the_'50s | 0.686 | 91892 |