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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1866 | 4 |
| 1868 | 1 |
| 1869 | 1 |
| 1872 | 1 |
| 1878 | 1 |
| 1879 | 1 |
| 1880 | 1 |
| 1881 | 1 |
| 1882 | 6 |
| 1891 | 1 |
| 1892 | 2 |
| 1900 | 2 |
| 1901 | 1 |
| 1902 | 1 |
| 1908 | 1 |
| 1909 | 2 |
| 1910 | 1 |
| 1911 | 1 |
| 1912 | 1 |
| 1914 | 1 |
| 1915 | 2 |
| 1918 | 2 |
| 1919 | 2 |
| 1921 | 1 |
| 1922 | 2 |
| 1923 | 2 |
| 1924 | 1 |
| 1925 | 2 |
| 1926 | 4 |
| 1927 | 4 |
| 1928 | 4 |
| 1929 | 2 |
| 1930 | 4 |
| 1931 | 1 |
| 1932 | 2 |
| 1933 | 3 |
| 1934 | 4 |
| 1935 | 1 |
| 1936 | 2 |
| 1937 | 5 |
| 1938 | 5 |
| 1939 | 2 |
| 1940 | 1 |
| 1941 | 3 |
| 1942 | 2 |
| 1943 | 3 |
| 1944 | 3 |
| 1945 | 5 |
| 1946 | 9 |
| 1947 | 10 |
| 1948 | 7 |
| 1949 | 8 |
| 1950 | 15 |
| 1951 | 8 |
| 1952 | 8 |
| 1953 | 5 |
| 1954 | 10 |
| 1955 | 13 |
| 1956 | 15 |
| 1957 | 26 |
| 1958 | 17 |
| 1959 | 11 |
| 1960 | 12 |
| 1961 | 28 |
| 1962 | 49 |
| 1963 | 40 |
| 1964 | 56 |
| 1965 | 65 |
| 1966 | 66 |
| 1967 | 48 |
| 1968 | 63 |
| 1969 | 83 |
| 1970 | 75 |
| 1971 | 76 |
| 1972 | 78 |
| 1973 | 87 |
| 1974 | 69 |
| 1975 | 78 |
| 1976 | 94 |
| 1977 | 87 |
| 1978 | 93 |
| 1979 | 92 |
| 1980 | 90 |
| 1981 | 90 |
| 1982 | 106 |
| 1983 | 87 |
| 1984 | 108 |
| 1985 | 102 |
| 1986 | 98 |
| 1987 | 90 |
| 1988 | 129 |
| 1989 | 107 |
| 1990 | 109 |
| 1991 | 123 |
| 1992 | 134 |
| 1993 | 132 |
| 1994 | 167 |
| 1995 | 166 |
| 1996 | 158 |
| 1997 | 171 |
| 1998 | 141 |
| 1999 | 158 |
| 2000 | 179 |
| 2001 | 191 |
| 2002 | 177 |
| 2003 | 226 |
| 2004 | 280 |
| 2005 | 309 |
| 2006 | 306 |
| 2007 | 361 |
| 2008 | 424 |
| 2009 | 459 |
| 2010 | 525 |
| 2011 | 647 |
| 2012 | 670 |
| 2013 | 746 |
| 2014 | 838 |
| 2015 | 870 |
| 2016 | 928 |
| 2017 | 980 |
| 2018 | 1034 |
| 2019 | 1068 |
| 2020 | 1336 |
| 2021 | 1559 |
| 2022 | 1455 |
| 2023 | 1471 |
| 2024 | 618 |