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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1818 | 2 |
| 1821 | 1 |
| 1826 | 1 |
| 1829 | 2 |
| 1830 | 2 |
| 1833 | 1 |
| 1836 | 1 |
| 1841 | 4 |
| 1842 | 2 |
| 1843 | 3 |
| 1844 | 2 |
| 1845 | 5 |
| 1846 | 1 |
| 1847 | 5 |
| 1848 | 18 |
| 1849 | 2 |
| 1850 | 2 |
| 1851 | 2 |
| 1852 | 2 |
| 1854 | 3 |
| 1855 | 1 |
| 1856 | 4 |
| 1857 | 4 |
| 1858 | 7 |
| 1861 | 1 |
| 1863 | 1 |
| 1866 | 4 |
| 1867 | 3 |
| 1868 | 9 |
| 1869 | 4 |
| 1870 | 1 |
| 1871 | 1 |
| 1872 | 4 |
| 1873 | 8 |
| 1874 | 5 |
| 1875 | 2 |
| 1876 | 5 |
| 1877 | 7 |
| 1878 | 5 |
| 1879 | 7 |
| 1880 | 7 |
| 1881 | 3 |
| 1882 | 5 |
| 1883 | 7 |
| 1884 | 23 |
| 1885 | 11 |
| 1886 | 4 |
| 1887 | 12 |
| 1888 | 13 |
| 1889 | 12 |
| 1890 | 4 |
| 1891 | 10 |
| 1892 | 6 |
| 1893 | 12 |
| 1894 | 7 |
| 1895 | 13 |
| 1896 | 10 |
| 1897 | 4 |
| 1898 | 9 |
| 1899 | 6 |
| 1900 | 4 |
| 1901 | 5 |
| 1902 | 1 |
| 1903 | 14 |
| 1904 | 20 |
| 1905 | 4 |
| 1906 | 11 |
| 1907 | 6 |
| 1908 | 6 |
| 1909 | 9 |
| 1910 | 4 |
| 1911 | 5 |
| 1912 | 8 |
| 1913 | 2 |
| 1914 | 8 |
| 1915 | 11 |
| 1916 | 4 |
| 1917 | 9 |
| 1918 | 4 |
| 1919 | 2 |
| 1920 | 8 |
| 1921 | 3 |
| 1922 | 13 |
| 1923 | 4 |
| 1924 | 10 |
| 1925 | 10 |
| 1926 | 13 |
| 1927 | 11 |
| 1928 | 11 |
| 1929 | 5 |
| 1930 | 3 |
| 1931 | 11 |
| 1932 | 16 |
| 1933 | 7 |
| 1934 | 9 |
| 1935 | 17 |
| 1936 | 22 |
| 1937 | 12 |
| 1938 | 14 |
| 1939 | 17 |
| 1940 | 6 |
| 1941 | 12 |
| 1942 | 11 |
| 1943 | 13 |
| 1944 | 13 |
| 1945 | 13 |
| 1946 | 32 |
| 1947 | 25 |
| 1948 | 18 |
| 1949 | 14 |
| 1950 | 26 |
| 1951 | 54 |
| 1952 | 93 |
| 1953 | 101 |
| 1954 | 37 |
| 1955 | 31 |
| 1956 | 40 |
| 1957 | 48 |
| 1958 | 53 |
| 1959 | 33 |
| 1960 | 51 |
| 1961 | 38 |
| 1962 | 44 |
| 1963 | 45 |
| 1964 | 60 |
| 1965 | 84 |
| 1966 | 80 |
| 1967 | 90 |
| 1968 | 67 |
| 1969 | 104 |
| 1970 | 106 |
| 1971 | 106 |
| 1972 | 102 |
| 1973 | 104 |
| 1974 | 113 |
| 1975 | 135 |
| 1976 | 115 |
| 1977 | 129 |
| 1978 | 176 |
| 1979 | 176 |
| 1980 | 151 |
| 1981 | 168 |
| 1982 | 172 |
| 1983 | 164 |
| 1984 | 201 |
| 1985 | 185 |
| 1986 | 268 |
| 1987 | 880 |
| 1988 | 1937 |
| 1989 | 2284 |
| 1990 | 2527 |
| 1991 | 2648 |
| 1992 | 2642 |
| 1993 | 2828 |
| 1994 | 2826 |
| 1995 | 2901 |
| 1996 | 3010 |
| 1997 | 3078 |
| 1998 | 3000 |
| 1999 | 3102 |
| 2000 | 3113 |
| 2001 | 3226 |
| 2002 | 3271 |
| 2003 | 3374 |
| 2004 | 3573 |
| 2005 | 3915 |
| 2006 | 4014 |
| 2007 | 4189 |
| 2008 | 4431 |
| 2009 | 4293 |
| 2010 | 4265 |
| 2011 | 4472 |
| 2012 | 4569 |
| 2013 | 5287 |
| 2014 | 7724 |
| 2015 | 9385 |
| 2016 | 10398 |
| 2017 | 10889 |
| 2018 | 11165 |
| 2019 | 11474 |
| 2020 | 13166 |
| 2021 | 14426 |
| 2022 | 13780 |
| 2023 | 13448 |
| 2024 | 13569 |
| 2025 | 11355 |
| 2026 | 8 |