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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1817 | 1 |
| 1818 | 1 |
| 1819 | 1 |
| 1820 | 1 |
| 1824 | 4 |
| 1828 | 1 |
| 1832 | 1 |
| 1836 | 2 |
| 1839 | 2 |
| 1840 | 2 |
| 1841 | 4 |
| 1842 | 4 |
| 1843 | 1 |
| 1844 | 2 |
| 1845 | 1 |
| 1847 | 4 |
| 1849 | 3 |
| 1850 | 3 |
| 1851 | 3 |
| 1852 | 2 |
| 1853 | 3 |
| 1854 | 2 |
| 1855 | 2 |
| 1856 | 4 |
| 1857 | 6 |
| 1859 | 4 |
| 1860 | 4 |
| 1863 | 1 |
| 1864 | 1 |
| 1867 | 1 |
| 1868 | 4 |
| 1869 | 1 |
| 1871 | 1 |
| 1872 | 4 |
| 1873 | 3 |
| 1876 | 5 |
| 1877 | 4 |
| 1878 | 8 |
| 1879 | 10 |
| 1880 | 2 |
| 1881 | 3 |
| 1882 | 2 |
| 1883 | 2 |
| 1884 | 2 |
| 1885 | 6 |
| 1886 | 7 |
| 1887 | 2 |
| 1888 | 1 |
| 1889 | 1 |
| 1890 | 7 |
| 1891 | 1 |
| 1893 | 4 |
| 1894 | 3 |
| 1895 | 1 |
| 1896 | 5 |
| 1897 | 15 |
| 1898 | 6 |
| 1899 | 5 |
| 1900 | 12 |
| 1901 | 13 |
| 1902 | 7 |
| 1903 | 5 |
| 1904 | 7 |
| 1905 | 13 |
| 1906 | 14 |
| 1907 | 10 |
| 1908 | 11 |
| 1909 | 21 |
| 1910 | 12 |
| 1911 | 24 |
| 1912 | 24 |
| 1913 | 21 |
| 1914 | 34 |
| 1915 | 19 |
| 1916 | 18 |
| 1917 | 23 |
| 1918 | 21 |
| 1919 | 17 |
| 1920 | 21 |
| 1921 | 29 |
| 1922 | 39 |
| 1923 | 35 |
| 1924 | 47 |
| 1925 | 54 |
| 1926 | 53 |
| 1927 | 56 |
| 1928 | 61 |
| 1929 | 38 |
| 1930 | 39 |
| 1931 | 61 |
| 1932 | 82 |
| 1933 | 63 |
| 1934 | 71 |
| 1935 | 69 |
| 1936 | 79 |
| 1937 | 72 |
| 1938 | 71 |
| 1939 | 74 |
| 1940 | 55 |
| 1941 | 62 |
| 1942 | 47 |
| 1943 | 43 |
| 1944 | 40 |
| 1945 | 738 |
| 1946 | 2241 |
| 1947 | 2533 |
| 1948 | 2630 |
| 1949 | 2190 |
| 1950 | 2698 |
| 1951 | 4869 |
| 1952 | 7388 |
| 1953 | 8868 |
| 1954 | 9478 |
| 1955 | 10363 |
| 1956 | 11002 |
| 1957 | 12354 |
| 1958 | 13044 |
| 1959 | 13475 |
| 1960 | 13605 |
| 1961 | 15181 |
| 1962 | 13184 |
| 1963 | 12871 |
| 1964 | 19937 |
| 1965 | 23908 |
| 1966 | 31501 |
| 1967 | 40124 |
| 1968 | 47006 |
| 1969 | 51141 |
| 1970 | 53583 |
| 1971 | 58457 |
| 1972 | 63683 |
| 1973 | 66793 |
| 1974 | 71061 |
| 1975 | 71995 |
| 1976 | 71248 |
| 1977 | 72544 |
| 1978 | 73938 |
| 1979 | 77807 |
| 1980 | 80740 |
| 1981 | 81145 |
| 1982 | 85192 |
| 1983 | 87399 |
| 1984 | 92393 |
| 1985 | 96638 |
| 1986 | 98792 |
| 1987 | 99940 |
| 1988 | 105001 |
| 1989 | 113177 |
| 1990 | 120360 |
| 1991 | 122318 |
| 1992 | 125312 |
| 1993 | 129347 |
| 1994 | 134585 |
| 1995 | 139698 |
| 1996 | 140683 |
| 1997 | 144096 |
| 1998 | 150411 |
| 1999 | 154809 |
| 2000 | 167159 |
| 2001 | 177479 |
| 2002 | 184735 |
| 2003 | 196962 |
| 2004 | 209539 |
| 2005 | 227111 |
| 2006 | 242309 |
| 2007 | 254856 |
| 2008 | 267093 |
| 2009 | 278118 |
| 2010 | 297192 |
| 2011 | 317553 |
| 2012 | 331965 |
| 2013 | 342181 |
| 2014 | 342376 |
| 2015 | 344575 |
| 2016 | 334993 |
| 2017 | 332248 |
| 2018 | 334414 |
| 2019 | 340222 |
| 2020 | 334225 |
| 2021 | 306605 |
| 2022 | 266948 |
| 2023 | 236081 |
| 2024 | 93793 |