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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1866 | 1 |
| 1868 | 2 |
| 1872 | 2 |
| 1874 | 2 |
| 1877 | 1 |
| 1878 | 1 |
| 1882 | 1 |
| 1887 | 1 |
| 1927 | 2 |
| 1928 | 1 |
| 1930 | 1 |
| 1931 | 1 |
| 1932 | 1 |
| 1939 | 1 |
| 1943 | 1 |
| 1944 | 1 |
| 1946 | 1 |
| 1958 | 1 |
| 1970 | 2 |
| 1972 | 1 |
| 1974 | 2 |
| 1975 | 2 |
| 1976 | 7 |
| 1977 | 10 |
| 1978 | 9 |
| 1979 | 1 |
| 1980 | 7 |
| 1981 | 3 |
| 1982 | 1 |
| 1983 | 3 |
| 1984 | 2 |
| 1985 | 1 |
| 1986 | 2 |
| 1987 | 2 |
| 1988 | 1 |
| 1989 | 4 |
| 1990 | 1 |
| 1991 | 1 |
| 1992 | 2 |
| 1993 | 2 |
| 1994 | 3 |
| 1995 | 1 |
| 1997 | 1 |
| 1998 | 2 |
| 2000 | 1 |
| 2001 | 1 |
| 2003 | 1 |
| 2006 | 2 |
| 2007 | 1 |
| 2008 | 2 |
| 2009 | 2 |
| 2012 | 1 |
| 2014 | 3 |
| 2015 | 2 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 1 |
| 2023 | 3 |
| 2024 | 1 |