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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1794 | 1 |
| 1816 | 2 |
| 1817 | 4 |
| 1818 | 1 |
| 1819 | 1 |
| 1820 | 1 |
| 1824 | 1 |
| 1827 | 1 |
| 1856 | 1 |
| 1866 | 3 |
| 1867 | 4 |
| 1868 | 2 |
| 1871 | 4 |
| 1872 | 3 |
| 1873 | 4 |
| 1874 | 2 |
| 1875 | 4 |
| 1876 | 5 |
| 1877 | 3 |
| 1881 | 1 |
| 1882 | 3 |
| 1883 | 2 |
| 1884 | 1 |
| 1887 | 1 |
| 1888 | 4 |
| 1890 | 1 |
| 1891 | 1 |
| 1892 | 2 |
| 1896 | 1 |
| 1898 | 1 |
| 1899 | 3 |
| 1900 | 1 |
| 1901 | 1 |
| 1903 | 1 |
| 1907 | 1 |
| 1911 | 1 |
| 1913 | 1 |
| 1915 | 1 |
| 1916 | 3 |
| 1917 | 2 |
| 1918 | 1 |
| 1919 | 1 |
| 1920 | 2 |
| 1924 | 1 |
| 1925 | 1 |
| 1926 | 1 |
| 1931 | 1 |
| 1933 | 1 |
| 1935 | 2 |
| 1936 | 2 |
| 1937 | 1 |
| 1938 | 2 |
| 1939 | 1 |
| 1941 | 4 |
| 1944 | 1 |
| 1945 | 2 |
| 1946 | 14 |
| 1947 | 15 |
| 1948 | 11 |
| 1949 | 13 |
| 1950 | 14 |
| 1951 | 24 |
| 1952 | 23 |
| 1953 | 16 |
| 1954 | 28 |
| 1955 | 28 |
| 1956 | 18 |
| 1957 | 40 |
| 1958 | 27 |
| 1959 | 32 |
| 1960 | 28 |
| 1961 | 40 |
| 1962 | 21 |
| 1963 | 20 |
| 1964 | 38 |
| 1965 | 54 |
| 1966 | 58 |
| 1967 | 51 |
| 1968 | 61 |
| 1969 | 88 |
| 1970 | 78 |
| 1971 | 101 |
| 1972 | 78 |
| 1973 | 90 |
| 1974 | 104 |
| 1975 | 92 |
| 1976 | 119 |
| 1977 | 104 |
| 1978 | 120 |
| 1979 | 119 |
| 1980 | 165 |
| 1981 | 153 |
| 1982 | 139 |
| 1983 | 142 |
| 1984 | 162 |
| 1985 | 168 |
| 1986 | 170 |
| 1987 | 173 |
| 1988 | 191 |
| 1989 | 190 |
| 1990 | 235 |
| 1991 | 237 |
| 1992 | 239 |
| 1993 | 240 |
| 1994 | 249 |
| 1995 | 272 |
| 1996 | 270 |
| 1997 | 252 |
| 1998 | 242 |
| 1999 | 231 |
| 2000 | 295 |
| 2001 | 315 |
| 2002 | 295 |
| 2003 | 332 |
| 2004 | 393 |
| 2005 | 454 |
| 2006 | 433 |
| 2007 | 458 |
| 2008 | 459 |
| 2009 | 466 |
| 2010 | 524 |
| 2011 | 566 |
| 2012 | 589 |
| 2013 | 669 |
| 2014 | 680 |
| 2015 | 654 |
| 2016 | 670 |
| 2017 | 658 |
| 2018 | 660 |
| 2019 | 715 |
| 2020 | 802 |
| 2021 | 843 |
| 2022 | 767 |
| 2023 | 378 |