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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1860 | 1 |
| 1861 | 2 |
| 1866 | 4 |
| 1867 | 1 |
| 1868 | 1 |
| 1869 | 1 |
| 1883 | 1 |
| 1885 | 1 |
| 1889 | 1 |
| 1890 | 1 |
| 1891 | 1 |
| 1893 | 2 |
| 1907 | 1 |
| 1920 | 1 |
| 1927 | 1 |
| 1930 | 1 |
| 1935 | 1 |
| 1940 | 3 |
| 1941 | 1 |
| 1943 | 5 |
| 1944 | 3 |
| 1945 | 2 |
| 1946 | 9 |
| 1947 | 9 |
| 1948 | 4 |
| 1949 | 9 |
| 1950 | 22 |
| 1951 | 24 |
| 1952 | 17 |
| 1953 | 12 |
| 1954 | 17 |
| 1955 | 15 |
| 1956 | 18 |
| 1957 | 15 |
| 1958 | 17 |
| 1959 | 14 |
| 1960 | 14 |
| 1961 | 19 |
| 1962 | 22 |
| 1963 | 18 |
| 1964 | 26 |
| 1965 | 25 |
| 1966 | 25 |
| 1967 | 25 |
| 1968 | 21 |
| 1969 | 34 |
| 1970 | 31 |
| 1971 | 32 |
| 1972 | 22 |
| 1973 | 35 |
| 1974 | 32 |
| 1975 | 46 |
| 1976 | 37 |
| 1977 | 53 |
| 1978 | 40 |
| 1979 | 62 |
| 1980 | 62 |
| 1981 | 48 |
| 1982 | 81 |
| 1983 | 101 |
| 1984 | 78 |
| 1985 | 78 |
| 1986 | 104 |
| 1987 | 98 |
| 1988 | 103 |
| 1989 | 112 |
| 1990 | 147 |
| 1991 | 122 |
| 1992 | 138 |
| 1993 | 149 |
| 1994 | 171 |
| 1995 | 166 |
| 1996 | 141 |
| 1997 | 165 |
| 1998 | 201 |
| 1999 | 197 |
| 2000 | 208 |
| 2001 | 202 |
| 2002 | 230 |
| 2003 | 266 |
| 2004 | 251 |
| 2005 | 275 |
| 2006 | 319 |
| 2007 | 317 |
| 2008 | 334 |
| 2009 | 392 |
| 2010 | 373 |
| 2011 | 474 |
| 2012 | 489 |
| 2013 | 451 |
| 2014 | 531 |
| 2015 | 592 |
| 2016 | 540 |
| 2017 | 544 |
| 2018 | 572 |
| 2019 | 597 |
| 2020 | 655 |
| 2021 | 677 |
| 2022 | 666 |
| 2023 | 597 |
| 2024 | 651 |
| 2025 | 492 |