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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1851 | 1 |
| 1866 | 3 |
| 1883 | 1 |
| 1884 | 2 |
| 1905 | 1 |
| 1906 | 1 |
| 1907 | 1 |
| 1908 | 1 |
| 1912 | 2 |
| 1913 | 1 |
| 1914 | 1 |
| 1916 | 1 |
| 1917 | 1 |
| 1918 | 1 |
| 1919 | 1 |
| 1924 | 1 |
| 1925 | 2 |
| 1932 | 1 |
| 1959 | 2 |
| 1960 | 1 |
| 1961 | 2 |
| 1964 | 1 |
| 1965 | 1 |
| 1970 | 4 |
| 1974 | 1 |
| 1980 | 2 |
| 1988 | 1 |
| 1993 | 1 |
| 2004 | 1 |
| 2008 | 1 |
| 2010 | 1 |
| 2011 | 1 |
| 2012 | 3 |
| 2013 | 5 |
| 2014 | 9 |
| 2015 | 5 |
| 2016 | 6 |
| 2017 | 6 |
| 2018 | 5 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 3 |