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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1864 | 1 |
| 1865 | 1 |
| 1875 | 2 |
| 1880 | 2 |
| 1885 | 1 |
| 1886 | 1 |
| 1889 | 1 |
| 1890 | 1 |
| 1891 | 1 |
| 1896 | 4 |
| 1898 | 1 |
| 1899 | 1 |
| 1900 | 2 |
| 1904 | 1 |
| 1905 | 1 |
| 1906 | 1 |
| 1907 | 1 |
| 1908 | 1 |
| 1909 | 2 |
| 1910 | 4 |
| 1911 | 1 |
| 1912 | 2 |
| 1913 | 4 |
| 1914 | 2 |
| 1916 | 2 |
| 1917 | 6 |
| 1918 | 1 |
| 1919 | 3 |
| 1920 | 4 |
| 1921 | 6 |
| 1922 | 5 |
| 1923 | 10 |
| 1924 | 2 |
| 1925 | 5 |
| 1926 | 5 |
| 1927 | 9 |
| 1928 | 4 |
| 1929 | 11 |
| 1930 | 5 |
| 1931 | 2 |
| 1932 | 9 |
| 1933 | 5 |
| 1934 | 4 |
| 1935 | 6 |
| 1936 | 6 |
| 1937 | 8 |
| 1938 | 5 |
| 1939 | 3 |
| 1940 | 3 |
| 1941 | 4 |
| 1942 | 4 |
| 1943 | 4 |
| 1944 | 8 |
| 1945 | 68 |
| 1946 | 158 |
| 1947 | 177 |
| 1948 | 151 |
| 1949 | 110 |
| 1950 | 144 |
| 1951 | 161 |
| 1952 | 137 |
| 1953 | 126 |
| 1954 | 125 |
| 1955 | 120 |
| 1956 | 119 |
| 1957 | 106 |
| 1958 | 96 |
| 1959 | 95 |
| 1960 | 110 |
| 1961 | 102 |
| 1962 | 129 |
| 1963 | 257 |
| 1964 | 250 |
| 1965 | 215 |
| 1966 | 196 |
| 1967 | 226 |
| 1968 | 231 |
| 1969 | 289 |
| 1970 | 273 |
| 1971 | 271 |
| 1972 | 261 |
| 1973 | 324 |
| 1974 | 294 |
| 1975 | 311 |
| 1976 | 325 |
| 1977 | 319 |
| 1978 | 355 |
| 1979 | 360 |
| 1980 | 336 |
| 1981 | 345 |
| 1982 | 420 |
| 1983 | 449 |
| 1984 | 458 |
| 1985 | 451 |
| 1986 | 478 |
| 1987 | 478 |
| 1988 | 482 |
| 1989 | 481 |
| 1990 | 518 |
| 1991 | 473 |
| 1992 | 444 |
| 1993 | 484 |
| 1994 | 448 |
| 1995 | 432 |
| 1996 | 462 |
| 1997 | 465 |
| 1998 | 478 |
| 1999 | 482 |
| 2000 | 477 |
| 2001 | 492 |
| 2002 | 467 |
| 2003 | 484 |
| 2004 | 514 |
| 2005 | 569 |
| 2006 | 630 |
| 2007 | 703 |
| 2008 | 750 |
| 2009 | 746 |
| 2010 | 795 |
| 2011 | 820 |
| 2012 | 877 |
| 2013 | 946 |
| 2014 | 969 |
| 2015 | 1013 |
| 2016 | 1073 |
| 2017 | 1057 |
| 2018 | 1008 |
| 2019 | 1217 |
| 2020 | 1414 |
| 2021 | 1441 |
| 2022 | 1442 |
| 2023 | 1414 |
| 2024 | 1540 |
| 2025 | 1639 |
| 2026 | 1222 |
| 2027 | 1 |