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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1817 | 1 |
| 1844 | 1 |
| 1846 | 1 |
| 1851 | 1 |
| 1853 | 1 |
| 1855 | 6 |
| 1859 | 2 |
| 1863 | 1 |
| 1865 | 1 |
| 1866 | 1 |
| 1867 | 1 |
| 1868 | 2 |
| 1869 | 4 |
| 1871 | 4 |
| 1872 | 1 |
| 1874 | 2 |
| 1875 | 1 |
| 1876 | 1 |
| 1877 | 3 |
| 1879 | 1 |
| 1880 | 1 |
| 1881 | 4 |
| 1882 | 2 |
| 1883 | 1 |
| 1884 | 2 |
| 1886 | 8 |
| 1887 | 1 |
| 1888 | 2 |
| 1889 | 2 |
| 1890 | 3 |
| 1891 | 4 |
| 1892 | 2 |
| 1893 | 1 |
| 1895 | 1 |
| 1896 | 1 |
| 1897 | 1 |
| 1899 | 1 |
| 1900 | 2 |
| 1902 | 1 |
| 1903 | 1 |
| 1904 | 1 |
| 1905 | 3 |
| 1907 | 1 |
| 1908 | 3 |
| 1909 | 1 |
| 1910 | 2 |
| 1911 | 2 |
| 1913 | 1 |
| 1914 | 2 |
| 1915 | 4 |
| 1916 | 1 |
| 1917 | 3 |
| 1918 | 4 |
| 1919 | 4 |
| 1920 | 5 |
| 1921 | 6 |
| 1922 | 2 |
| 1923 | 1 |
| 1924 | 3 |
| 1925 | 3 |
| 1926 | 2 |
| 1927 | 16 |
| 1928 | 11 |
| 1929 | 9 |
| 1930 | 7 |
| 1931 | 10 |
| 1932 | 7 |
| 1933 | 10 |
| 1934 | 10 |
| 1935 | 8 |
| 1936 | 4 |
| 1937 | 3 |
| 1938 | 4 |
| 1939 | 6 |
| 1940 | 3 |
| 1941 | 2 |
| 1942 | 5 |
| 1943 | 7 |
| 1944 | 5 |
| 1945 | 6 |
| 1946 | 23 |
| 1947 | 42 |
| 1948 | 25 |
| 1949 | 22 |
| 1950 | 32 |
| 1951 | 34 |
| 1952 | 24 |
| 1953 | 26 |
| 1954 | 27 |
| 1955 | 61 |
| 1956 | 24 |
| 1957 | 31 |
| 1958 | 40 |
| 1959 | 42 |
| 1960 | 31 |
| 1961 | 25 |
| 1962 | 40 |
| 1963 | 45 |
| 1964 | 45 |
| 1965 | 57 |
| 1966 | 52 |
| 1967 | 58 |
| 1968 | 81 |
| 1969 | 51 |
| 1970 | 59 |
| 1971 | 48 |
| 1972 | 77 |
| 1973 | 86 |
| 1974 | 88 |
| 1975 | 91 |
| 1976 | 66 |
| 1977 | 76 |
| 1978 | 77 |
| 1979 | 127 |
| 1980 | 127 |
| 1981 | 139 |
| 1982 | 130 |
| 1983 | 134 |
| 1984 | 162 |
| 1985 | 147 |
| 1986 | 185 |
| 1987 | 222 |
| 1988 | 203 |
| 1989 | 206 |
| 1990 | 221 |
| 1991 | 217 |
| 1992 | 259 |
| 1993 | 239 |
| 1994 | 250 |
| 1995 | 286 |
| 1996 | 266 |
| 1997 | 251 |
| 1998 | 249 |
| 1999 | 278 |
| 2000 | 344 |
| 2001 | 386 |
| 2002 | 442 |
| 2003 | 477 |
| 2004 | 500 |
| 2005 | 518 |
| 2006 | 586 |
| 2007 | 565 |
| 2008 | 664 |
| 2009 | 661 |
| 2010 | 699 |
| 2011 | 801 |
| 2012 | 787 |
| 2013 | 863 |
| 2014 | 1015 |
| 2015 | 1156 |
| 2016 | 1159 |
| 2017 | 1198 |
| 2018 | 1156 |
| 2019 | 1225 |
| 2020 | 1370 |
| 2021 | 1451 |
| 2022 | 1375 |
| 2023 | 1353 |
| 2024 | 1234 |
| 2025 | 1127 |
| 2026 | 3 |