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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1863 | 1 |
| 1889 | 1 |
| 1892 | 3 |
| 1893 | 1 |
| 1908 | 1 |
| 1914 | 1 |
| 1915 | 1 |
| 1928 | 1 |
| 1934 | 1 |
| 1935 | 3 |
| 1936 | 1 |
| 1937 | 1 |
| 1939 | 1 |
| 1940 | 1 |
| 1942 | 1 |
| 1945 | 4 |
| 1946 | 18 |
| 1947 | 16 |
| 1948 | 10 |
| 1949 | 15 |
| 1950 | 11 |
| 1951 | 8 |
| 1952 | 15 |
| 1953 | 20 |
| 1954 | 12 |
| 1955 | 10 |
| 1956 | 17 |
| 1957 | 18 |
| 1958 | 15 |
| 1959 | 10 |
| 1960 | 13 |
| 1961 | 13 |
| 1962 | 22 |
| 1963 | 20 |
| 1964 | 17 |
| 1965 | 23 |
| 1966 | 26 |
| 1967 | 26 |
| 1968 | 32 |
| 1969 | 37 |
| 1970 | 36 |
| 1971 | 31 |
| 1972 | 40 |
| 1973 | 45 |
| 1974 | 33 |
| 1975 | 49 |
| 1976 | 60 |
| 1977 | 70 |
| 1978 | 71 |
| 1979 | 68 |
| 1980 | 98 |
| 1981 | 88 |
| 1982 | 71 |
| 1983 | 97 |
| 1984 | 96 |
| 1985 | 106 |
| 1986 | 98 |
| 1987 | 101 |
| 1988 | 158 |
| 1989 | 141 |
| 1990 | 150 |
| 1991 | 163 |
| 1992 | 173 |
| 1993 | 180 |
| 1994 | 171 |
| 1995 | 177 |
| 1996 | 148 |
| 1997 | 164 |
| 1998 | 209 |
| 1999 | 176 |
| 2000 | 201 |
| 2001 | 236 |
| 2002 | 220 |
| 2003 | 235 |
| 2004 | 232 |
| 2005 | 262 |
| 2006 | 292 |
| 2007 | 303 |
| 2008 | 312 |
| 2009 | 387 |
| 2010 | 407 |
| 2011 | 417 |
| 2012 | 452 |
| 2013 | 486 |
| 2014 | 474 |
| 2015 | 515 |
| 2016 | 574 |
| 2017 | 550 |
| 2018 | 592 |
| 2019 | 617 |
| 2020 | 676 |
| 2021 | 710 |
| 2022 | 700 |
| 2023 | 689 |
| 2024 | 496 |