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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1831 | 1 |
| 1841 | 3 |
| 1842 | 1 |
| 1844 | 1 |
| 1848 | 1 |
| 1850 | 1 |
| 1851 | 1 |
| 1852 | 1 |
| 1858 | 3 |
| 1860 | 1 |
| 1861 | 1 |
| 1863 | 1 |
| 1865 | 1 |
| 1867 | 2 |
| 1868 | 2 |
| 1870 | 2 |
| 1871 | 1 |
| 1874 | 2 |
| 1875 | 1 |
| 1876 | 2 |
| 1877 | 7 |
| 1878 | 3 |
| 1879 | 1 |
| 1881 | 6 |
| 1882 | 2 |
| 1883 | 2 |
| 1884 | 2 |
| 1885 | 1 |
| 1886 | 1 |
| 1887 | 3 |
| 1888 | 6 |
| 1890 | 3 |
| 1891 | 4 |
| 1892 | 2 |
| 1893 | 3 |
| 1894 | 1 |
| 1895 | 4 |
| 1896 | 4 |
| 1897 | 6 |
| 1898 | 5 |
| 1899 | 2 |
| 1900 | 4 |
| 1901 | 5 |
| 1902 | 6 |
| 1903 | 6 |
| 1904 | 1 |
| 1905 | 6 |
| 1906 | 3 |
| 1907 | 7 |
| 1908 | 7 |
| 1909 | 3 |
| 1910 | 8 |
| 1911 | 4 |
| 1912 | 4 |
| 1913 | 2 |
| 1914 | 6 |
| 1915 | 8 |
| 1916 | 9 |
| 1917 | 10 |
| 1918 | 13 |
| 1919 | 12 |
| 1920 | 5 |
| 1921 | 9 |
| 1922 | 7 |
| 1923 | 8 |
| 1924 | 9 |
| 1925 | 9 |
| 1926 | 22 |
| 1927 | 27 |
| 1928 | 29 |
| 1929 | 20 |
| 1930 | 37 |
| 1931 | 32 |
| 1932 | 20 |
| 1933 | 36 |
| 1934 | 22 |
| 1935 | 30 |
| 1936 | 27 |
| 1937 | 24 |
| 1938 | 14 |
| 1939 | 33 |
| 1940 | 13 |
| 1941 | 28 |
| 1942 | 14 |
| 1943 | 13 |
| 1944 | 19 |
| 1945 | 85 |
| 1946 | 156 |
| 1947 | 162 |
| 1948 | 142 |
| 1949 | 139 |
| 1950 | 250 |
| 1951 | 323 |
| 1952 | 338 |
| 1953 | 362 |
| 1954 | 331 |
| 1955 | 326 |
| 1956 | 302 |
| 1957 | 284 |
| 1958 | 318 |
| 1959 | 341 |
| 1960 | 291 |
| 1961 | 339 |
| 1962 | 413 |
| 1963 | 576 |
| 1964 | 799 |
| 1965 | 619 |
| 1966 | 606 |
| 1967 | 688 |
| 1968 | 738 |
| 1969 | 853 |
| 1970 | 919 |
| 1971 | 1103 |
| 1972 | 1334 |
| 1973 | 1373 |
| 1974 | 1408 |
| 1975 | 2430 |
| 1976 | 2444 |
| 1977 | 2364 |
| 1978 | 2422 |
| 1979 | 2678 |
| 1980 | 2725 |
| 1981 | 2878 |
| 1982 | 3034 |
| 1983 | 3456 |
| 1984 | 3686 |
| 1985 | 4421 |
| 1986 | 4646 |
| 1987 | 4928 |
| 1988 | 5545 |
| 1989 | 6255 |
| 1990 | 6556 |
| 1991 | 6930 |
| 1992 | 7315 |
| 1993 | 7400 |
| 1994 | 7727 |
| 1995 | 8171 |
| 1996 | 8433 |
| 1997 | 7445 |
| 1998 | 7571 |
| 1999 | 8223 |
| 2000 | 9060 |
| 2001 | 9615 |
| 2002 | 9721 |
| 2003 | 10438 |
| 2004 | 11132 |
| 2005 | 13045 |
| 2006 | 13833 |
| 2007 | 14206 |
| 2008 | 14807 |
| 2009 | 15289 |
| 2010 | 16280 |
| 2011 | 16958 |
| 2012 | 18018 |
| 2013 | 19541 |
| 2014 | 21851 |
| 2015 | 25913 |
| 2016 | 30906 |
| 2017 | 32104 |
| 2018 | 32234 |
| 2019 | 30619 |
| 2020 | 29724 |
| 2021 | 32553 |
| 2022 | 31780 |
| 2023 | 29566 |
| 2024 | 22994 |
| 2025 | 16 |