| Similarity | Rank | |
|---|---|---|
| 1880 | 0.827 | 9812 |
| 1870 | 0.825 | 11182 |
| 1920 | 0.824 | 5459 |
| 1830 | 0.808 | 13819 |
| 1860 | 0.786 | 11907 |
| 1900 | 0.784 | 20137 |
| 1840 | 0.779 | 13067 |
| nineteenth | 0.770 | 2686 |
| 1930 | 0.765 | 4100 |
| 1950 | 0.757 | 3691 |
| 1850 | 0.752 | 13777 |
| mid-nineteenth | 0.750 | 18774 |
| 1820 | 0.746 | 20795 |
| 1780 | 0.737 | 22814 |
| 1960 | 0.734 | 2807 |
| eighteenth | 0.733 | 3641 |
| 1760 | 0.731 | 28511 |
| 1790 | 0.710 | 23722 |
| 1970 | 0.709 | 2583 |
| 1630 | 0.708 | 31363 |
| 1940 | 0.707 | 7398 |
| 1770 | 0.706 | 26955 |
| 1800 | 0.701 | 33369 |
| nineteenth-century | 0.701 | 5882 |
| pre-war | 0.683 | 9050 |