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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1853 | 5 |
| 1859 | 2 |
| 1860 | 2 |
| 1861 | 1 |
| 1862 | 2 |
| 1864 | 2 |
| 1865 | 1 |
| 1868 | 2 |
| 1871 | 1 |
| 1874 | 1 |
| 1878 | 1 |
| 1879 | 1 |
| 1880 | 1 |
| 1881 | 1 |
| 1896 | 1 |
| 1903 | 1 |
| 1904 | 1 |
| 1905 | 1 |
| 1906 | 2 |
| 1907 | 1 |
| 1909 | 1 |
| 1910 | 2 |
| 1919 | 1 |
| 1920 | 2 |
| 1921 | 2 |
| 1922 | 3 |
| 1924 | 1 |
| 1925 | 5 |
| 1926 | 1 |
| 1927 | 2 |
| 1928 | 1 |
| 1929 | 5 |
| 1930 | 1 |
| 1932 | 1 |
| 1933 | 4 |
| 1934 | 4 |
| 1935 | 7 |
| 1936 | 2 |
| 1937 | 2 |
| 1938 | 6 |
| 1939 | 1 |
| 1940 | 1 |
| 1942 | 1 |
| 1944 | 1 |
| 1946 | 8 |
| 1947 | 9 |
| 1948 | 13 |
| 1949 | 17 |
| 1950 | 15 |
| 1951 | 12 |
| 1952 | 11 |
| 1953 | 12 |
| 1954 | 8 |
| 1955 | 9 |
| 1956 | 19 |
| 1957 | 11 |
| 1958 | 12 |
| 1959 | 24 |
| 1960 | 23 |
| 1961 | 27 |
| 1962 | 38 |
| 1963 | 18 |
| 1964 | 34 |
| 1965 | 40 |
| 1966 | 52 |
| 1967 | 47 |
| 1968 | 50 |
| 1969 | 53 |
| 1970 | 55 |
| 1971 | 70 |
| 1972 | 90 |
| 1973 | 67 |
| 1974 | 72 |
| 1975 | 77 |
| 1976 | 93 |
| 1977 | 79 |
| 1978 | 104 |
| 1979 | 115 |
| 1980 | 97 |
| 1981 | 126 |
| 1982 | 121 |
| 1983 | 147 |
| 1984 | 153 |
| 1985 | 183 |
| 1986 | 160 |
| 1987 | 185 |
| 1988 | 166 |
| 1989 | 218 |
| 1990 | 200 |
| 1991 | 180 |
| 1992 | 213 |
| 1993 | 207 |
| 1994 | 229 |
| 1995 | 225 |
| 1996 | 265 |
| 1997 | 238 |
| 1998 | 260 |
| 1999 | 270 |
| 2000 | 242 |
| 2001 | 246 |
| 2002 | 265 |
| 2003 | 246 |
| 2004 | 295 |
| 2005 | 331 |
| 2006 | 334 |
| 2007 | 344 |
| 2008 | 364 |
| 2009 | 364 |
| 2010 | 388 |
| 2011 | 441 |
| 2012 | 476 |
| 2013 | 426 |
| 2014 | 454 |
| 2015 | 519 |
| 2016 | 535 |
| 2017 | 497 |
| 2018 | 478 |
| 2019 | 422 |
| 2020 | 477 |
| 2021 | 458 |
| 2022 | 374 |
| 2023 | 360 |
| 2024 | 378 |
| 2025 | 203 |