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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 | 3 |
| 1870 | 3 |
| 1871 | 4 |
| 1872 | 1 |
| 1873 | 2 |
| 1874 | 2 |
| 1875 | 2 |
| 1876 | 3 |
| 1878 | 4 |
| 1880 | 2 |
| 1881 | 1 |
| 1882 | 4 |
| 1883 | 2 |
| 1884 | 4 |
| 1885 | 1 |
| 1890 | 1 |
| 1891 | 1 |
| 1892 | 1 |
| 1894 | 2 |
| 1909 | 1 |
| 1915 | 1 |
| 1927 | 1 |
| 1931 | 1 |
| 1960 | 2 |
| 1966 | 1 |
| 1967 | 2 |
| 1968 | 1 |
| 1969 | 2 |
| 1972 | 3 |
| 1973 | 3 |
| 1974 | 1 |
| 1975 | 2 |
| 1976 | 1 |
| 1977 | 3 |
| 1979 | 1 |
| 1981 | 1 |
| 1983 | 1 |
| 1989 | 1 |
| 1992 | 2 |
| 1993 | 1 |
| 1994 | 1 |
| 1997 | 1 |
| 1998 | 3 |
| 1999 | 1 |
| 2007 | 1 |
| 2009 | 1 |
| 2010 | 1 |
| 2014 | 1 |
| 2015 | 1 |
| 2019 | 1 |
| 2023 | 1 |
| 2025 | 1 |
| 2026 | 0 |