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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1866 | 1 |
| 1867 | 1 |
| 1868 | 2 |
| 1870 | 1 |
| 1873 | 3 |
| 1875 | 2 |
| 1878 | 1 |
| 1880 | 1 |
| 1889 | 1 |
| 1950 | 1 |
| 1951 | 1 |
| 1952 | 3 |
| 1953 | 2 |
| 1954 | 1 |
| 1956 | 1 |
| 1958 | 4 |
| 1959 | 1 |
| 1960 | 1 |
| 1961 | 2 |
| 1963 | 3 |
| 1965 | 1 |
| 1966 | 2 |
| 1968 | 1 |
| 1969 | 2 |
| 1970 | 1 |
| 1971 | 2 |
| 1972 | 2 |
| 1974 | 1 |
| 1977 | 1 |
| 1979 | 1 |
| 1982 | 1 |
| 1983 | 2 |
| 1988 | 1 |
| 1989 | 1 |
| 1996 | 2 |
| 2012 | 1 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 1 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 2 |
| 2024 | 0 |