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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1878 | 1 |
| 1879 | 2 |
| 1880 | 7 |
| 1881 | 5 |
| 1882 | 2 |
| 1883 | 5 |
| 1884 | 4 |
| 1885 | 1 |
| 1890 | 1 |
| 1892 | 2 |
| 1895 | 2 |
| 1896 | 1 |
| 1900 | 1 |
| 1902 | 1 |
| 1903 | 1 |
| 1904 | 1 |
| 1905 | 2 |
| 1906 | 1 |
| 1909 | 1 |
| 1912 | 2 |
| 1913 | 1 |
| 1914 | 1 |
| 1916 | 1 |
| 1917 | 1 |
| 1921 | 1 |
| 1922 | 4 |
| 1923 | 4 |
| 1924 | 2 |
| 1925 | 2 |
| 1926 | 4 |
| 1927 | 1 |
| 1928 | 1 |
| 1929 | 4 |
| 1930 | 3 |
| 1931 | 1 |
| 1932 | 10 |
| 1933 | 2 |
| 1934 | 2 |
| 1935 | 5 |
| 1936 | 6 |
| 1937 | 9 |
| 1938 | 1 |
| 1939 | 4 |
| 1940 | 4 |
| 1941 | 1 |
| 1942 | 6 |
| 1943 | 5 |
| 1944 | 4 |
| 1945 | 14 |
| 1946 | 54 |
| 1947 | 45 |
| 1948 | 38 |
| 1949 | 45 |
| 1950 | 44 |
| 1951 | 55 |
| 1952 | 52 |
| 1953 | 48 |
| 1954 | 51 |
| 1955 | 54 |
| 1956 | 47 |
| 1957 | 53 |
| 1958 | 46 |
| 1959 | 70 |
| 1960 | 47 |
| 1961 | 65 |
| 1962 | 79 |
| 1963 | 93 |
| 1964 | 92 |
| 1965 | 132 |
| 1966 | 148 |
| 1967 | 129 |
| 1968 | 169 |
| 1969 | 158 |
| 1970 | 152 |
| 1971 | 180 |
| 1972 | 167 |
| 1973 | 197 |
| 1974 | 196 |
| 1975 | 212 |
| 1976 | 224 |
| 1977 | 288 |
| 1978 | 296 |
| 1979 | 291 |
| 1980 | 291 |
| 1981 | 346 |
| 1982 | 366 |
| 1983 | 411 |
| 1984 | 415 |
| 1985 | 424 |
| 1986 | 385 |
| 1987 | 405 |
| 1988 | 435 |
| 1989 | 404 |
| 1990 | 425 |
| 1991 | 452 |
| 1992 | 469 |
| 1993 | 444 |
| 1994 | 487 |
| 1995 | 550 |
| 1996 | 560 |
| 1997 | 492 |
| 1998 | 505 |
| 1999 | 503 |
| 2000 | 531 |
| 2001 | 564 |
| 2002 | 588 |
| 2003 | 578 |
| 2004 | 661 |
| 2005 | 757 |
| 2006 | 815 |
| 2007 | 823 |
| 2008 | 998 |
| 2009 | 969 |
| 2010 | 980 |
| 2011 | 1099 |
| 2012 | 1141 |
| 2013 | 1223 |
| 2014 | 1345 |
| 2015 | 1346 |
| 2016 | 1337 |
| 2017 | 1352 |
| 2018 | 1347 |
| 2019 | 1484 |
| 2020 | 1661 |
| 2021 | 1697 |
| 2022 | 1667 |
| 2023 | 1556 |
| 2024 | 558 |