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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1850 | 1 |
| 1853 | 1 |
| 1855 | 1 |
| 1856 | 2 |
| 1857 | 1 |
| 1859 | 1 |
| 1861 | 1 |
| 1862 | 3 |
| 1864 | 1 |
| 1866 | 1 |
| 1867 | 1 |
| 1868 | 1 |
| 1869 | 2 |
| 1871 | 4 |
| 1872 | 1 |
| 1873 | 1 |
| 1875 | 2 |
| 1877 | 3 |
| 1878 | 2 |
| 1879 | 1 |
| 1880 | 1 |
| 1881 | 3 |
| 1883 | 1 |
| 1884 | 3 |
| 1885 | 3 |
| 1886 | 4 |
| 1887 | 4 |
| 1888 | 2 |
| 1889 | 6 |
| 1890 | 11 |
| 1891 | 2 |
| 1892 | 6 |
| 1893 | 10 |
| 1894 | 5 |
| 1895 | 5 |
| 1896 | 2 |
| 1897 | 3 |
| 1898 | 4 |
| 1899 | 3 |
| 1900 | 9 |
| 1901 | 9 |
| 1902 | 4 |
| 1903 | 3 |
| 1904 | 8 |
| 1905 | 7 |
| 1906 | 12 |
| 1907 | 7 |
| 1908 | 11 |
| 1909 | 4 |
| 1910 | 7 |
| 1911 | 4 |
| 1912 | 6 |
| 1913 | 6 |
| 1914 | 10 |
| 1915 | 18 |
| 1916 | 13 |
| 1917 | 13 |
| 1918 | 10 |
| 1919 | 17 |
| 1920 | 9 |
| 1921 | 4 |
| 1922 | 9 |
| 1923 | 13 |
| 1924 | 7 |
| 1925 | 3 |
| 1926 | 7 |
| 1927 | 6 |
| 1928 | 5 |
| 1929 | 5 |
| 1930 | 9 |
| 1931 | 15 |
| 1932 | 22 |
| 1933 | 10 |
| 1934 | 8 |
| 1935 | 11 |
| 1936 | 13 |
| 1937 | 21 |
| 1938 | 25 |
| 1939 | 17 |
| 1940 | 17 |
| 1941 | 11 |
| 1942 | 11 |
| 1943 | 12 |
| 1944 | 7 |
| 1945 | 22 |
| 1946 | 19 |
| 1947 | 15 |
| 1948 | 21 |
| 1949 | 10 |
| 1950 | 18 |
| 1951 | 19 |
| 1952 | 16 |
| 1953 | 16 |
| 1954 | 17 |
| 1955 | 11 |
| 1956 | 14 |
| 1957 | 7 |
| 1958 | 12 |
| 1959 | 16 |
| 1960 | 10 |
| 1961 | 11 |
| 1962 | 16 |
| 1963 | 16 |
| 1964 | 20 |
| 1965 | 26 |
| 1966 | 51 |
| 1967 | 36 |
| 1968 | 39 |
| 1969 | 33 |
| 1970 | 58 |
| 1971 | 44 |
| 1972 | 47 |
| 1973 | 48 |
| 1974 | 31 |
| 1975 | 59 |
| 1976 | 52 |
| 1977 | 105 |
| 1978 | 85 |
| 1979 | 79 |
| 1980 | 81 |
| 1981 | 84 |
| 1982 | 100 |
| 1983 | 90 |
| 1984 | 133 |
| 1985 | 151 |
| 1986 | 197 |
| 1987 | 986 |
| 1988 | 2401 |
| 1989 | 2479 |
| 1990 | 2824 |
| 1991 | 2788 |
| 1992 | 2815 |
| 1993 | 2852 |
| 1994 | 2893 |
| 1995 | 2882 |
| 1996 | 2952 |
| 1997 | 2889 |
| 1998 | 2947 |
| 1999 | 2909 |
| 2000 | 3458 |
| 2001 | 3030 |
| 2002 | 3087 |
| 2003 | 3301 |
| 2004 | 3553 |
| 2005 | 3739 |
| 2006 | 3834 |
| 2007 | 3984 |
| 2008 | 4257 |
| 2009 | 4425 |
| 2010 | 4916 |
| 2011 | 5338 |
| 2012 | 5310 |
| 2013 | 6262 |
| 2014 | 9343 |
| 2015 | 11159 |
| 2016 | 13028 |
| 2017 | 13467 |
| 2018 | 14301 |
| 2019 | 15285 |
| 2020 | 17415 |
| 2021 | 19421 |
| 2022 | 18969 |
| 2023 | 18286 |
| 2024 | 7721 |