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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1845 | 1 |
| 1887 | 1 |
| 1898 | 1 |
| 1906 | 1 |
| 1908 | 1 |
| 1946 | 1 |
| 1953 | 1 |
| 1954 | 1 |
| 1955 | 1 |
| 1956 | 1 |
| 1961 | 1 |
| 1962 | 3 |
| 1963 | 20 |
| 1964 | 21 |
| 1965 | 9 |
| 1967 | 1 |
| 1968 | 1 |
| 1969 | 2 |
| 1970 | 1 |
| 1971 | 1 |
| 1972 | 1 |
| 1973 | 1 |
| 1974 | 2 |
| 1975 | 1 |
| 1978 | 2 |
| 1979 | 2 |
| 1982 | 1 |
| 1983 | 1 |
| 1984 | 1 |
| 1985 | 3 |
| 1986 | 2 |
| 1989 | 1 |
| 1990 | 2 |
| 1991 | 1 |
| 1992 | 1 |
| 1996 | 1 |
| 1997 | 1 |
| 2000 | 1 |
| 2001 | 1 |
| 2003 | 1 |
| 2006 | 1 |
| 2013 | 2 |
| 2014 | 4 |
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 1 |
| 2021 | 2 |
| 2024 | 0 |