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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1878 | 30 |
| 1879 | 31 |
| 1880 | 13 |
| 1881 | 5 |
| 1882 | 21 |
| 1883 | 16 |
| 1884 | 26 |
| 1885 | 43 |
| 1886 | 31 |
| 1887 | 32 |
| 1888 | 24 |
| 1889 | 22 |
| 1890 | 35 |
| 1891 | 38 |
| 1892 | 30 |
| 1893 | 44 |
| 1894 | 63 |
| 1895 | 43 |
| 1896 | 44 |
| 1897 | 45 |
| 1898 | 43 |
| 1899 | 42 |
| 1900 | 34 |
| 1901 | 48 |
| 1902 | 46 |
| 1903 | 56 |
| 1904 | 52 |
| 1905 | 55 |
| 1906 | 48 |
| 1907 | 40 |
| 1908 | 44 |
| 1909 | 43 |
| 1910 | 58 |
| 1911 | 57 |
| 1912 | 70 |
| 1913 | 59 |
| 1914 | 51 |
| 1915 | 44 |
| 1916 | 26 |
| 1917 | 30 |
| 1918 | 11 |
| 1919 | 38 |
| 1920 | 43 |
| 1921 | 47 |
| 1922 | 53 |
| 1923 | 67 |
| 1924 | 65 |
| 1925 | 56 |
| 1926 | 75 |
| 1927 | 77 |
| 1928 | 87 |
| 1929 | 67 |
| 1930 | 82 |
| 1931 | 97 |
| 1932 | 124 |
| 1933 | 128 |
| 1934 | 123 |
| 1935 | 100 |
| 1936 | 102 |
| 1937 | 109 |
| 1938 | 118 |
| 1939 | 103 |
| 1940 | 79 |
| 1941 | 56 |
| 1942 | 41 |
| 1943 | 46 |
| 1944 | 34 |
| 1945 | 28 |
| 1946 | 125 |
| 1947 | 123 |
| 1948 | 54 |
| 1949 | 326 |
| 1950 | 78 |
| 1951 | 279 |
| 1952 | 273 |
| 1953 | 399 |
| 1954 | 423 |
| 1955 | 394 |
| 1956 | 300 |
| 1957 | 308 |
| 1958 | 255 |
| 1959 | 238 |
| 1960 | 224 |
| 1961 | 209 |
| 1962 | 195 |
| 1963 | 250 |
| 1964 | 203 |
| 1965 | 250 |
| 1966 | 341 |
| 1967 | 476 |
| 1968 | 513 |
| 1969 | 771 |
| 1970 | 665 |
| 1971 | 727 |
| 1972 | 757 |
| 1973 | 692 |
| 1974 | 791 |
| 1975 | 935 |
| 1976 | 968 |
| 1977 | 1001 |
| 1978 | 1150 |
| 1979 | 1056 |
| 1980 | 489 |
| 1981 | 443 |
| 1982 | 427 |
| 1983 | 490 |
| 1984 | 488 |
| 1985 | 350 |
| 1986 | 396 |
| 1987 | 495 |
| 1988 | 497 |
| 1989 | 412 |
| 1990 | 419 |
| 1991 | 492 |
| 1992 | 469 |
| 1993 | 511 |
| 1994 | 412 |
| 1995 | 552 |
| 1996 | 591 |
| 1997 | 523 |
| 1998 | 632 |
| 1999 | 633 |
| 2000 | 518 |
| 2001 | 626 |
| 2002 | 732 |
| 2003 | 787 |
| 2004 | 728 |
| 2005 | 728 |
| 2006 | 709 |
| 2007 | 824 |
| 2008 | 624 |
| 2009 | 607 |
| 2010 | 566 |
| 2011 | 627 |
| 2012 | 640 |
| 2013 | 594 |
| 2014 | 511 |
| 2015 | 551 |
| 2016 | 713 |
| 2017 | 714 |
| 2018 | 666 |
| 2019 | 574 |
| 2020 | 639 |
| 2021 | 518 |
| 2022 | 539 |
| 2023 | 84 |