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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1859 | 1 |
| 1863 | 1 |
| 1864 | 2 |
| 1866 | 1 |
| 1869 | 1 |
| 1872 | 1 |
| 1882 | 1 |
| 1883 | 1 |
| 1902 | 1 |
| 1905 | 1 |
| 1906 | 1 |
| 1909 | 1 |
| 1913 | 1 |
| 1914 | 2 |
| 1915 | 1 |
| 1921 | 2 |
| 1922 | 2 |
| 1924 | 1 |
| 1926 | 1 |
| 1930 | 1 |
| 1931 | 1 |
| 1933 | 3 |
| 1935 | 1 |
| 1937 | 1 |
| 1939 | 1 |
| 1940 | 1 |
| 1943 | 3 |
| 1944 | 2 |
| 1945 | 7 |
| 1946 | 13 |
| 1947 | 10 |
| 1948 | 20 |
| 1949 | 13 |
| 1950 | 9 |
| 1951 | 9 |
| 1952 | 25 |
| 1953 | 23 |
| 1954 | 19 |
| 1955 | 20 |
| 1956 | 25 |
| 1957 | 21 |
| 1958 | 28 |
| 1959 | 27 |
| 1960 | 28 |
| 1961 | 22 |
| 1962 | 12 |
| 1963 | 19 |
| 1964 | 27 |
| 1965 | 30 |
| 1966 | 41 |
| 1967 | 51 |
| 1968 | 52 |
| 1969 | 63 |
| 1970 | 83 |
| 1971 | 97 |
| 1972 | 95 |
| 1973 | 75 |
| 1974 | 81 |
| 1975 | 107 |
| 1976 | 125 |
| 1977 | 143 |
| 1978 | 115 |
| 1979 | 97 |
| 1980 | 108 |
| 1981 | 119 |
| 1982 | 129 |
| 1983 | 121 |
| 1984 | 150 |
| 1985 | 148 |
| 1986 | 148 |
| 1987 | 155 |
| 1988 | 167 |
| 1989 | 186 |
| 1990 | 226 |
| 1991 | 214 |
| 1992 | 184 |
| 1993 | 201 |
| 1994 | 213 |
| 1995 | 201 |
| 1996 | 219 |
| 1997 | 224 |
| 1998 | 231 |
| 1999 | 216 |
| 2000 | 241 |
| 2001 | 254 |
| 2002 | 254 |
| 2003 | 243 |
| 2004 | 271 |
| 2005 | 342 |
| 2006 | 328 |
| 2007 | 379 |
| 2008 | 420 |
| 2009 | 479 |
| 2010 | 493 |
| 2011 | 532 |
| 2012 | 492 |
| 2013 | 508 |
| 2014 | 521 |
| 2015 | 497 |
| 2016 | 555 |
| 2017 | 574 |
| 2018 | 597 |
| 2019 | 652 |
| 2020 | 658 |
| 2021 | 749 |
| 2022 | 663 |
| 2023 | 653 |
| 2024 | 668 |
| 2025 | 580 |