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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1846 | 1 |
| 1847 | 1 |
| 1848 | 2 |
| 1875 | 1 |
| 1878 | 1 |
| 1881 | 1 |
| 1886 | 1 |
| 1889 | 1 |
| 1897 | 2 |
| 1903 | 2 |
| 1904 | 9 |
| 1905 | 6 |
| 1906 | 4 |
| 1907 | 2 |
| 1909 | 3 |
| 1919 | 1 |
| 1920 | 1 |
| 1921 | 1 |
| 1923 | 1 |
| 1928 | 1 |
| 1929 | 1 |
| 1930 | 1 |
| 1932 | 2 |
| 1933 | 2 |
| 1934 | 3 |
| 1935 | 1 |
| 1936 | 1 |
| 1937 | 1 |
| 1938 | 1 |
| 1941 | 1 |
| 1942 | 1 |
| 1943 | 2 |
| 1944 | 1 |
| 1945 | 7 |
| 1946 | 17 |
| 1947 | 16 |
| 1948 | 11 |
| 1949 | 11 |
| 1950 | 14 |
| 1951 | 23 |
| 1952 | 13 |
| 1953 | 13 |
| 1954 | 7 |
| 1955 | 16 |
| 1956 | 16 |
| 1957 | 14 |
| 1958 | 17 |
| 1959 | 10 |
| 1960 | 15 |
| 1961 | 7 |
| 1962 | 10 |
| 1963 | 10 |
| 1964 | 19 |
| 1965 | 20 |
| 1966 | 27 |
| 1967 | 28 |
| 1968 | 23 |
| 1969 | 36 |
| 1970 | 25 |
| 1971 | 35 |
| 1972 | 38 |
| 1973 | 33 |
| 1974 | 41 |
| 1975 | 55 |
| 1976 | 55 |
| 1977 | 49 |
| 1978 | 48 |
| 1979 | 54 |
| 1980 | 39 |
| 1981 | 62 |
| 1982 | 62 |
| 1983 | 84 |
| 1984 | 90 |
| 1985 | 86 |
| 1986 | 77 |
| 1987 | 83 |
| 1988 | 72 |
| 1989 | 101 |
| 1990 | 108 |
| 1991 | 108 |
| 1992 | 105 |
| 1993 | 120 |
| 1994 | 125 |
| 1995 | 128 |
| 1996 | 133 |
| 1997 | 133 |
| 1998 | 140 |
| 1999 | 134 |
| 2000 | 154 |
| 2001 | 149 |
| 2002 | 159 |
| 2003 | 149 |
| 2004 | 147 |
| 2005 | 164 |
| 2006 | 199 |
| 2007 | 194 |
| 2008 | 255 |
| 2009 | 267 |
| 2010 | 261 |
| 2011 | 306 |
| 2012 | 325 |
| 2013 | 341 |
| 2014 | 366 |
| 2015 | 407 |
| 2016 | 448 |
| 2017 | 418 |
| 2018 | 453 |
| 2019 | 428 |
| 2020 | 487 |
| 2021 | 457 |
| 2022 | 473 |
| 2023 | 453 |
| 2024 | 461 |
| 2025 | 437 |
| 2026 | 4 |