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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1846 | 1 |
| 1847 | 1 |
| 1848 | 1 |
| 1851 | 1 |
| 1852 | 1 |
| 1854 | 1 |
| 1857 | 2 |
| 1858 | 1 |
| 1860 | 1 |
| 1861 | 3 |
| 1862 | 1 |
| 1863 | 3 |
| 1864 | 1 |
| 1865 | 2 |
| 1866 | 1 |
| 1867 | 2 |
| 1868 | 5 |
| 1869 | 2 |
| 1870 | 3 |
| 1873 | 1 |
| 1874 | 6 |
| 1875 | 5 |
| 1877 | 2 |
| 1878 | 1 |
| 1879 | 1 |
| 1880 | 1 |
| 1881 | 1 |
| 1883 | 2 |
| 1884 | 1 |
| 1885 | 3 |
| 1886 | 1 |
| 1887 | 1 |
| 1888 | 2 |
| 1889 | 1 |
| 1891 | 5 |
| 1892 | 1 |
| 1893 | 2 |
| 1895 | 2 |
| 1896 | 2 |
| 1897 | 2 |
| 1898 | 1 |
| 1899 | 1 |
| 1900 | 4 |
| 1912 | 1 |
| 1946 | 1 |
| 1948 | 1 |
| 1950 | 2 |
| 1951 | 1 |
| 1952 | 5 |
| 1953 | 9 |
| 1954 | 18 |
| 1955 | 14 |
| 1956 | 5 |
| 1957 | 8 |
| 1958 | 7 |
| 1959 | 4 |
| 1960 | 1 |
| 1961 | 5 |
| 1962 | 2 |
| 1963 | 6 |
| 1965 | 3 |
| 1966 | 4 |
| 1967 | 4 |
| 1968 | 2 |
| 1969 | 5 |
| 1970 | 7 |
| 1971 | 4 |
| 1972 | 8 |
| 1973 | 3 |
| 1974 | 13 |
| 1975 | 49 |
| 1976 | 37 |
| 1977 | 49 |
| 1978 | 81 |
| 1979 | 92 |
| 1980 | 105 |
| 1981 | 107 |
| 1982 | 141 |
| 1983 | 155 |
| 1984 | 152 |
| 1985 | 146 |
| 1986 | 153 |
| 1987 | 154 |
| 1988 | 193 |
| 1989 | 279 |
| 1990 | 266 |
| 1991 | 275 |
| 1992 | 302 |
| 1993 | 290 |
| 1994 | 313 |
| 1995 | 292 |
| 1996 | 306 |
| 1997 | 359 |
| 1998 | 391 |
| 1999 | 391 |
| 2000 | 474 |
| 2001 | 551 |
| 2002 | 566 |
| 2003 | 668 |
| 2004 | 860 |
| 2005 | 1235 |
| 2006 | 1425 |
| 2007 | 1526 |
| 2008 | 1935 |
| 2009 | 2142 |
| 2010 | 2576 |
| 2011 | 2869 |
| 2012 | 3075 |
| 2013 | 3493 |
| 2014 | 3845 |
| 2015 | 4033 |
| 2016 | 4241 |
| 2017 | 4517 |
| 2018 | 5204 |
| 2019 | 5594 |
| 2020 | 5976 |
| 2021 | 6029 |
| 2022 | 6182 |
| 2023 | 6011 |
| 2024 | 6173 |
| 2025 | 4875 |
| 2026 | 5 |