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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1847 | 1 |
| 1855 | 1 |
| 1856 | 2 |
| 1866 | 1 |
| 1867 | 2 |
| 1868 | 1 |
| 1873 | 1 |
| 1877 | 2 |
| 1882 | 1 |
| 1883 | 2 |
| 1887 | 1 |
| 1891 | 3 |
| 1893 | 1 |
| 1895 | 1 |
| 1896 | 1 |
| 1898 | 1 |
| 1899 | 1 |
| 1900 | 2 |
| 1906 | 1 |
| 1909 | 1 |
| 1913 | 1 |
| 1914 | 2 |
| 1915 | 2 |
| 1916 | 1 |
| 1917 | 1 |
| 1920 | 1 |
| 1921 | 2 |
| 1922 | 1 |
| 1923 | 1 |
| 1924 | 1 |
| 1927 | 1 |
| 1930 | 2 |
| 1931 | 2 |
| 1932 | 1 |
| 1933 | 1 |
| 1934 | 2 |
| 1935 | 2 |
| 1937 | 2 |
| 1938 | 2 |
| 1939 | 1 |
| 1940 | 2 |
| 1945 | 2 |
| 1946 | 8 |
| 1947 | 3 |
| 1948 | 4 |
| 1949 | 7 |
| 1950 | 9 |
| 1951 | 19 |
| 1952 | 6 |
| 1953 | 1 |
| 1954 | 4 |
| 1955 | 6 |
| 1956 | 1 |
| 1957 | 3 |
| 1958 | 1 |
| 1959 | 2 |
| 1960 | 3 |
| 1961 | 1 |
| 1962 | 6 |
| 1963 | 5 |
| 1964 | 8 |
| 1965 | 9 |
| 1966 | 5 |
| 1967 | 15 |
| 1968 | 12 |
| 1969 | 19 |
| 1970 | 11 |
| 1971 | 14 |
| 1972 | 11 |
| 1973 | 18 |
| 1974 | 20 |
| 1975 | 14 |
| 1976 | 20 |
| 1977 | 18 |
| 1978 | 13 |
| 1979 | 16 |
| 1980 | 14 |
| 1981 | 17 |
| 1982 | 13 |
| 1983 | 25 |
| 1984 | 17 |
| 1985 | 34 |
| 1986 | 45 |
| 1987 | 35 |
| 1988 | 42 |
| 1989 | 44 |
| 1990 | 51 |
| 1991 | 69 |
| 1992 | 56 |
| 1993 | 66 |
| 1994 | 48 |
| 1995 | 65 |
| 1996 | 76 |
| 1997 | 61 |
| 1998 | 72 |
| 1999 | 83 |
| 2000 | 92 |
| 2001 | 110 |
| 2002 | 101 |
| 2003 | 111 |
| 2004 | 116 |
| 2005 | 142 |
| 2006 | 158 |
| 2007 | 175 |
| 2008 | 209 |
| 2009 | 249 |
| 2010 | 272 |
| 2011 | 295 |
| 2012 | 350 |
| 2013 | 308 |
| 2014 | 321 |
| 2015 | 330 |
| 2016 | 376 |
| 2017 | 404 |
| 2018 | 422 |
| 2019 | 418 |
| 2020 | 452 |
| 2021 | 480 |
| 2022 | 437 |
| 2023 | 417 |
| 2024 | 436 |
| 2025 | 280 |