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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1790 | 1 |
| 1809 | 1 |
| 1812 | 1 |
| 1813 | 1 |
| 1816 | 2 |
| 1817 | 1 |
| 1818 | 1 |
| 1820 | 4 |
| 1821 | 1 |
| 1822 | 1 |
| 1823 | 1 |
| 1827 | 1 |
| 1833 | 2 |
| 1849 | 1 |
| 1858 | 1 |
| 1886 | 1 |
| 1888 | 2 |
| 1889 | 1 |
| 1890 | 1 |
| 1891 | 1 |
| 1892 | 1 |
| 1896 | 2 |
| 1898 | 1 |
| 1899 | 1 |
| 1900 | 1 |
| 1902 | 1 |
| 1903 | 1 |
| 1906 | 1 |
| 1908 | 2 |
| 1910 | 2 |
| 1912 | 1 |
| 1913 | 1 |
| 1916 | 1 |
| 1917 | 4 |
| 1921 | 1 |
| 1922 | 3 |
| 1923 | 3 |
| 1924 | 3 |
| 1925 | 1 |
| 1926 | 4 |
| 1927 | 2 |
| 1928 | 4 |
| 1929 | 7 |
| 1930 | 8 |
| 1931 | 2 |
| 1932 | 3 |
| 1933 | 5 |
| 1934 | 2 |
| 1935 | 2 |
| 1937 | 2 |
| 1938 | 4 |
| 1939 | 2 |
| 1940 | 2 |
| 1943 | 1 |
| 1944 | 1 |
| 1945 | 3 |
| 1946 | 6 |
| 1947 | 9 |
| 1948 | 13 |
| 1949 | 9 |
| 1950 | 11 |
| 1951 | 25 |
| 1952 | 14 |
| 1953 | 10 |
| 1954 | 10 |
| 1955 | 10 |
| 1956 | 10 |
| 1957 | 8 |
| 1958 | 16 |
| 1959 | 12 |
| 1960 | 9 |
| 1961 | 9 |
| 1962 | 17 |
| 1963 | 10 |
| 1964 | 22 |
| 1965 | 33 |
| 1966 | 31 |
| 1967 | 34 |
| 1968 | 25 |
| 1969 | 24 |
| 1970 | 29 |
| 1971 | 28 |
| 1972 | 21 |
| 1973 | 47 |
| 1974 | 29 |
| 1975 | 41 |
| 1976 | 41 |
| 1977 | 30 |
| 1978 | 42 |
| 1979 | 50 |
| 1980 | 56 |
| 1981 | 46 |
| 1982 | 44 |
| 1983 | 48 |
| 1984 | 60 |
| 1985 | 67 |
| 1986 | 56 |
| 1987 | 82 |
| 1988 | 104 |
| 1989 | 102 |
| 1990 | 117 |
| 1991 | 103 |
| 1992 | 118 |
| 1993 | 115 |
| 1994 | 111 |
| 1995 | 89 |
| 1996 | 103 |
| 1997 | 127 |
| 1998 | 140 |
| 1999 | 148 |
| 2000 | 190 |
| 2001 | 219 |
| 2002 | 265 |
| 2003 | 310 |
| 2004 | 271 |
| 2005 | 366 |
| 2006 | 381 |
| 2007 | 419 |
| 2008 | 488 |
| 2009 | 487 |
| 2010 | 535 |
| 2011 | 570 |
| 2012 | 613 |
| 2013 | 696 |
| 2014 | 848 |
| 2015 | 1058 |
| 2016 | 1024 |
| 2017 | 1003 |
| 2018 | 1161 |
| 2019 | 1230 |
| 2020 | 1319 |
| 2021 | 1470 |
| 2022 | 1438 |
| 2023 | 607 |