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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1846 | 1 |
| 1848 | 14 |
| 1849 | 10 |
| 1850 | 22 |
| 1851 | 19 |
| 1852 | 15 |
| 1853 | 15 |
| 1854 | 15 |
| 1855 | 17 |
| 1856 | 19 |
| 1857 | 19 |
| 1858 | 20 |
| 1859 | 11 |
| 1860 | 14 |
| 1861 | 2 |
| 1862 | 1 |
| 1863 | 6 |
| 1864 | 5 |
| 1865 | 9 |
| 1866 | 6 |
| 1867 | 9 |
| 1868 | 6 |
| 1869 | 12 |
| 1870 | 6 |
| 1871 | 7 |
| 1872 | 12 |
| 1873 | 13 |
| 1874 | 11 |
| 1875 | 14 |
| 1876 | 9 |
| 1877 | 9 |
| 1878 | 9 |
| 1879 | 9 |
| 1880 | 13 |
| 1881 | 13 |
| 1882 | 19 |
| 1883 | 9 |
| 1884 | 19 |
| 1885 | 11 |
| 1886 | 13 |
| 1887 | 9 |
| 1888 | 12 |
| 1889 | 7 |
| 1890 | 16 |
| 1891 | 17 |
| 1892 | 9 |
| 1893 | 10 |
| 1894 | 17 |
| 1895 | 5 |
| 1896 | 9 |
| 1897 | 9 |
| 1898 | 18 |
| 1899 | 8 |
| 1900 | 7 |
| 1901 | 15 |
| 1902 | 23 |
| 1903 | 16 |
| 1904 | 21 |
| 1905 | 21 |
| 1906 | 10 |
| 1907 | 16 |
| 1908 | 8 |
| 1909 | 5 |
| 1910 | 7 |
| 1911 | 12 |
| 1913 | 4 |
| 1914 | 8 |
| 1915 | 8 |
| 1916 | 5 |
| 1917 | 4 |
| 1918 | 2 |
| 1919 | 4 |
| 1920 | 2 |
| 1921 | 1 |
| 1922 | 4 |
| 1923 | 20 |
| 1924 | 4 |
| 1925 | 3 |
| 1926 | 2 |
| 1927 | 3 |
| 1929 | 5 |
| 1932 | 6 |
| 1933 | 2 |
| 1934 | 4 |
| 1935 | 7 |
| 1936 | 5 |
| 1937 | 5 |
| 1938 | 15 |
| 1939 | 7 |
| 1940 | 10 |
| 1941 | 7 |
| 1942 | 6 |
| 1943 | 4 |
| 1944 | 8 |
| 1945 | 6 |
| 1946 | 26 |
| 1947 | 27 |
| 1948 | 8 |
| 1949 | 17 |
| 1950 | 599 |
| 1951 | 1720 |
| 1952 | 1721 |
| 1953 | 1616 |
| 1954 | 1421 |
| 1955 | 1691 |
| 1956 | 1540 |
| 1957 | 1730 |
| 1958 | 1873 |
| 1959 | 1427 |
| 1960 | 339 |
| 1961 | 20 |
| 1962 | 15 |
| 1963 | 24 |
| 1964 | 39 |
| 1965 | 49 |
| 1966 | 80 |
| 1967 | 108 |
| 1968 | 97 |
| 1969 | 128 |
| 1970 | 137 |
| 1971 | 155 |
| 1972 | 133 |
| 1973 | 182 |
| 1974 | 181 |
| 1975 | 173 |
| 1976 | 125 |
| 1977 | 128 |
| 1978 | 215 |
| 1979 | 283 |
| 1980 | 198 |
| 1981 | 164 |
| 1982 | 199 |
| 1983 | 221 |
| 1984 | 207 |
| 1985 | 208 |
| 1986 | 251 |
| 1987 | 287 |
| 1988 | 521 |
| 1989 | 449 |
| 1990 | 480 |
| 1991 | 547 |
| 1992 | 580 |
| 1993 | 567 |
| 1994 | 605 |
| 1995 | 616 |
| 1996 | 629 |
| 1997 | 644 |
| 1998 | 631 |
| 1999 | 722 |
| 2000 | 772 |
| 2001 | 779 |
| 2002 | 776 |
| 2003 | 812 |
| 2004 | 787 |
| 2005 | 954 |
| 2006 | 998 |
| 2007 | 1092 |
| 2008 | 1203 |
| 2009 | 1266 |
| 2010 | 1388 |
| 2011 | 1468 |
| 2012 | 1644 |
| 2013 | 1866 |
| 2014 | 2451 |
| 2015 | 2955 |
| 2016 | 3308 |
| 2017 | 3780 |
| 2018 | 4133 |
| 2019 | 4559 |
| 2020 | 5589 |
| 2021 | 6350 |
| 2022 | 6249 |
| 2023 | 6797 |
| 2024 | 3768 |