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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1817 | 1 |
| 1826 | 1 |
| 1827 | 1 |
| 1828 | 1 |
| 1829 | 2 |
| 1831 | 4 |
| 1832 | 1 |
| 1835 | 3 |
| 1838 | 1 |
| 1839 | 3 |
| 1842 | 2 |
| 1843 | 1 |
| 1844 | 3 |
| 1845 | 2 |
| 1847 | 3 |
| 1848 | 4 |
| 1849 | 7 |
| 1850 | 6 |
| 1851 | 3 |
| 1852 | 6 |
| 1853 | 6 |
| 1854 | 4 |
| 1855 | 2 |
| 1856 | 3 |
| 1857 | 2 |
| 1858 | 4 |
| 1859 | 3 |
| 1860 | 4 |
| 1861 | 7 |
| 1862 | 6 |
| 1863 | 6 |
| 1864 | 3 |
| 1865 | 7 |
| 1866 | 1 |
| 1867 | 2 |
| 1868 | 4 |
| 1869 | 2 |
| 1870 | 3 |
| 1874 | 5 |
| 1875 | 9 |
| 1876 | 2 |
| 1877 | 6 |
| 1878 | 2 |
| 1879 | 1 |
| 1880 | 3 |
| 1881 | 2 |
| 1882 | 4 |
| 1883 | 1 |
| 1884 | 1 |
| 1885 | 1 |
| 1886 | 2 |
| 1887 | 5 |
| 1888 | 8 |
| 1889 | 12 |
| 1890 | 5 |
| 1891 | 6 |
| 1893 | 3 |
| 1894 | 4 |
| 1895 | 3 |
| 1896 | 4 |
| 1897 | 5 |
| 1898 | 4 |
| 1899 | 4 |
| 1900 | 3 |
| 1901 | 3 |
| 1902 | 2 |
| 1903 | 2 |
| 1905 | 1 |
| 1906 | 1 |
| 1908 | 6 |
| 1909 | 2 |
| 1910 | 1 |
| 1911 | 1 |
| 1912 | 2 |
| 1913 | 1 |
| 1914 | 1 |
| 1915 | 5 |
| 1916 | 6 |
| 1917 | 1 |
| 1918 | 2 |
| 1919 | 6 |
| 1920 | 3 |
| 1921 | 2 |
| 1922 | 2 |
| 1923 | 5 |
| 1924 | 8 |
| 1925 | 3 |
| 1926 | 3 |
| 1927 | 3 |
| 1928 | 4 |
| 1929 | 8 |
| 1930 | 2 |
| 1931 | 1 |
| 1932 | 2 |
| 1934 | 10 |
| 1935 | 7 |
| 1936 | 6 |
| 1937 | 5 |
| 1938 | 1 |
| 1939 | 2 |
| 1940 | 5 |
| 1941 | 11 |
| 1942 | 4 |
| 1943 | 5 |
| 1944 | 11 |
| 1945 | 15 |
| 1946 | 51 |
| 1947 | 57 |
| 1948 | 55 |
| 1949 | 56 |
| 1950 | 51 |
| 1951 | 62 |
| 1952 | 58 |
| 1953 | 74 |
| 1954 | 79 |
| 1955 | 84 |
| 1956 | 87 |
| 1957 | 100 |
| 1958 | 106 |
| 1959 | 78 |
| 1960 | 133 |
| 1961 | 137 |
| 1962 | 257 |
| 1963 | 231 |
| 1964 | 220 |
| 1965 | 273 |
| 1966 | 279 |
| 1967 | 295 |
| 1968 | 324 |
| 1969 | 410 |
| 1970 | 449 |
| 1971 | 483 |
| 1972 | 597 |
| 1973 | 602 |
| 1974 | 677 |
| 1975 | 696 |
| 1976 | 834 |
| 1977 | 867 |
| 1978 | 881 |
| 1979 | 866 |
| 1980 | 998 |
| 1981 | 1013 |
| 1982 | 1105 |
| 1983 | 1193 |
| 1984 | 1277 |
| 1985 | 1491 |
| 1986 | 1717 |
| 1987 | 1910 |
| 1988 | 2125 |
| 1989 | 2268 |
| 1990 | 2369 |
| 1991 | 2671 |
| 1992 | 2821 |
| 1993 | 2997 |
| 1994 | 3524 |
| 1995 | 3830 |
| 1996 | 4240 |
| 1997 | 4260 |
| 1998 | 4834 |
| 1999 | 5382 |
| 2000 | 6429 |
| 2001 | 7312 |
| 2002 | 7987 |
| 2003 | 9426 |
| 2004 | 11089 |
| 2005 | 12949 |
| 2006 | 14439 |
| 2007 | 16314 |
| 2008 | 18516 |
| 2009 | 20409 |
| 2010 | 23508 |
| 2011 | 26632 |
| 2012 | 29302 |
| 2013 | 31164 |
| 2014 | 32857 |
| 2015 | 34696 |
| 2016 | 35527 |
| 2017 | 35932 |
| 2018 | 36822 |
| 2019 | 38366 |
| 2020 | 43545 |
| 2021 | 47465 |
| 2022 | 45240 |
| 2023 | 42639 |
| 2024 | 43280 |
| 2025 | 45128 |
| 2026 | 22304 |
| 2027 | 3 |