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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1840 | 1 |
| 1875 | 1 |
| 1878 | 2 |
| 1888 | 1 |
| 1889 | 2 |
| 1891 | 1 |
| 1896 | 1 |
| 1898 | 1 |
| 1906 | 1 |
| 1913 | 1 |
| 1915 | 1 |
| 1916 | 1 |
| 1917 | 1 |
| 1920 | 2 |
| 1922 | 1 |
| 1930 | 1 |
| 1931 | 1 |
| 1932 | 1 |
| 1935 | 1 |
| 1938 | 3 |
| 1939 | 1 |
| 1940 | 2 |
| 1941 | 5 |
| 1943 | 7 |
| 1944 | 2 |
| 1945 | 7 |
| 1946 | 10 |
| 1947 | 16 |
| 1948 | 16 |
| 1949 | 5 |
| 1950 | 10 |
| 1951 | 13 |
| 1952 | 10 |
| 1953 | 10 |
| 1954 | 17 |
| 1955 | 11 |
| 1956 | 8 |
| 1957 | 8 |
| 1958 | 11 |
| 1959 | 11 |
| 1960 | 11 |
| 1961 | 10 |
| 1962 | 8 |
| 1963 | 12 |
| 1964 | 14 |
| 1965 | 20 |
| 1966 | 21 |
| 1967 | 34 |
| 1968 | 31 |
| 1969 | 48 |
| 1970 | 38 |
| 1971 | 35 |
| 1972 | 33 |
| 1973 | 35 |
| 1974 | 26 |
| 1975 | 32 |
| 1976 | 42 |
| 1977 | 44 |
| 1978 | 33 |
| 1979 | 38 |
| 1980 | 43 |
| 1981 | 63 |
| 1982 | 60 |
| 1983 | 48 |
| 1984 | 47 |
| 1985 | 49 |
| 1986 | 52 |
| 1987 | 61 |
| 1988 | 69 |
| 1989 | 68 |
| 1990 | 55 |
| 1991 | 80 |
| 1992 | 75 |
| 1993 | 80 |
| 1994 | 102 |
| 1995 | 102 |
| 1996 | 83 |
| 1997 | 90 |
| 1998 | 91 |
| 1999 | 103 |
| 2000 | 132 |
| 2001 | 152 |
| 2002 | 164 |
| 2003 | 191 |
| 2004 | 173 |
| 2005 | 227 |
| 2006 | 279 |
| 2007 | 282 |
| 2008 | 297 |
| 2009 | 339 |
| 2010 | 338 |
| 2011 | 378 |
| 2012 | 440 |
| 2013 | 429 |
| 2014 | 428 |
| 2015 | 448 |
| 2016 | 493 |
| 2017 | 531 |
| 2018 | 516 |
| 2019 | 559 |
| 2020 | 626 |
| 2021 | 706 |
| 2022 | 689 |
| 2023 | 648 |
| 2024 | 310 |