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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1868 | 1 |
| 1870 | 1 |
| 1871 | 2 |
| 1872 | 1 |
| 1873 | 1 |
| 1879 | 1 |
| 1954 | 1 |
| 1956 | 1 |
| 1958 | 1 |
| 1959 | 2 |
| 1960 | 1 |
| 1962 | 2 |
| 1963 | 2 |
| 1965 | 1 |
| 1966 | 1 |
| 1967 | 2 |
| 1968 | 1 |
| 1969 | 1 |
| 1970 | 5 |
| 1971 | 1 |
| 1972 | 1 |
| 1973 | 6 |
| 1974 | 1 |
| 1976 | 2 |
| 1977 | 2 |
| 1978 | 3 |
| 1979 | 3 |
| 1980 | 2 |
| 1982 | 1 |
| 1988 | 2 |
| 1989 | 1 |
| 1991 | 1 |
| 1992 | 1 |
| 1993 | 3 |
| 1995 | 1 |
| 2000 | 1 |
| 2010 | 1 |
| 2012 | 4 |
| 2013 | 4 |
| 2014 | 4 |
| 2015 | 2 |
| 2017 | 2 |
| 2020 | 1 |
| 2021 | 2 |
| 2024 | 1 |