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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1790 | 1 |
| 1806 | 2 |
| 1807 | 1 |
| 1811 | 1 |
| 1818 | 1 |
| 1819 | 1 |
| 1828 | 2 |
| 1829 | 1 |
| 1833 | 1 |
| 1844 | 3 |
| 1847 | 1 |
| 1850 | 4 |
| 1851 | 2 |
| 1853 | 3 |
| 1855 | 2 |
| 1856 | 2 |
| 1857 | 1 |
| 1860 | 1 |
| 1861 | 2 |
| 1862 | 4 |
| 1863 | 4 |
| 1864 | 4 |
| 1865 | 4 |
| 1866 | 1 |
| 1867 | 5 |
| 1868 | 3 |
| 1869 | 5 |
| 1870 | 8 |
| 1871 | 5 |
| 1872 | 5 |
| 1873 | 2 |
| 1874 | 1 |
| 1875 | 3 |
| 1876 | 4 |
| 1877 | 3 |
| 1878 | 2 |
| 1879 | 17 |
| 1880 | 15 |
| 1881 | 10 |
| 1882 | 4 |
| 1883 | 7 |
| 1884 | 1 |
| 1885 | 3 |
| 1886 | 1 |
| 1887 | 3 |
| 1888 | 5 |
| 1889 | 7 |
| 1890 | 5 |
| 1891 | 3 |
| 1892 | 6 |
| 1893 | 5 |
| 1894 | 7 |
| 1895 | 4 |
| 1896 | 3 |
| 1898 | 5 |
| 1899 | 3 |
| 1900 | 3 |
| 1901 | 3 |
| 1902 | 4 |
| 1903 | 4 |
| 1904 | 4 |
| 1905 | 5 |
| 1906 | 3 |
| 1907 | 4 |
| 1908 | 4 |
| 1909 | 6 |
| 1910 | 2 |
| 1911 | 1 |
| 1912 | 6 |
| 1913 | 5 |
| 1914 | 6 |
| 1915 | 6 |
| 1916 | 6 |
| 1917 | 3 |
| 1918 | 2 |
| 1919 | 1 |
| 1920 | 3 |
| 1921 | 4 |
| 1922 | 6 |
| 1923 | 6 |
| 1924 | 5 |
| 1925 | 1 |
| 1926 | 5 |
| 1927 | 4 |
| 1928 | 3 |
| 1929 | 2 |
| 1930 | 2 |
| 1931 | 4 |
| 1932 | 6 |
| 1933 | 6 |
| 1934 | 12 |
| 1935 | 6 |
| 1936 | 10 |
| 1937 | 9 |
| 1938 | 12 |
| 1939 | 6 |
| 1940 | 9 |
| 1941 | 9 |
| 1942 | 8 |
| 1943 | 17 |
| 1944 | 15 |
| 1945 | 22 |
| 1946 | 66 |
| 1947 | 78 |
| 1948 | 88 |
| 1949 | 70 |
| 1950 | 83 |
| 1951 | 91 |
| 1952 | 103 |
| 1953 | 77 |
| 1954 | 86 |
| 1955 | 95 |
| 1956 | 85 |
| 1957 | 85 |
| 1958 | 93 |
| 1959 | 78 |
| 1960 | 98 |
| 1961 | 88 |
| 1962 | 105 |
| 1963 | 116 |
| 1964 | 136 |
| 1965 | 184 |
| 1966 | 170 |
| 1967 | 204 |
| 1968 | 183 |
| 1969 | 208 |
| 1970 | 216 |
| 1971 | 233 |
| 1972 | 260 |
| 1973 | 265 |
| 1974 | 272 |
| 1975 | 341 |
| 1976 | 303 |
| 1977 | 304 |
| 1978 | 284 |
| 1979 | 405 |
| 1980 | 366 |
| 1981 | 391 |
| 1982 | 439 |
| 1983 | 452 |
| 1984 | 473 |
| 1985 | 493 |
| 1986 | 504 |
| 1987 | 488 |
| 1988 | 501 |
| 1989 | 536 |
| 1990 | 547 |
| 1991 | 606 |
| 1992 | 585 |
| 1993 | 600 |
| 1994 | 651 |
| 1995 | 654 |
| 1996 | 644 |
| 1997 | 624 |
| 1998 | 600 |
| 1999 | 642 |
| 2000 | 698 |
| 2001 | 697 |
| 2002 | 715 |
| 2003 | 721 |
| 2004 | 765 |
| 2005 | 821 |
| 2006 | 928 |
| 2007 | 973 |
| 2008 | 1007 |
| 2009 | 1049 |
| 2010 | 1110 |
| 2011 | 1178 |
| 2012 | 1278 |
| 2013 | 1341 |
| 2014 | 1349 |
| 2015 | 1409 |
| 2016 | 1470 |
| 2017 | 1474 |
| 2018 | 1473 |
| 2019 | 1443 |
| 2020 | 1669 |
| 2021 | 1777 |
| 2022 | 1651 |
| 2023 | 1524 |
| 2024 | 609 |