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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1839 | 24 |
| 1840 | 19 |
| 1841 | 49 |
| 1842 | 65 |
| 1843 | 31 |
| 1844 | 63 |
| 1845 | 74 |
| 1846 | 63 |
| 1847 | 61 |
| 1848 | 79 |
| 1849 | 56 |
| 1850 | 70 |
| 1851 | 127 |
| 1852 | 104 |
| 1853 | 125 |
| 1854 | 59 |
| 1855 | 73 |
| 1856 | 85 |
| 1857 | 170 |
| 1858 | 234 |
| 1859 | 252 |
| 1860 | 306 |
| 1861 | 163 |
| 1863 | 1 |
| 1864 | 2 |
| 1865 | 3 |
| 1866 | 11 |
| 1867 | 119 |
| 1868 | 189 |
| 1869 | 180 |
| 1870 | 167 |
| 1871 | 157 |
| 1872 | 158 |
| 1873 | 164 |
| 1874 | 155 |
| 1875 | 146 |
| 1876 | 132 |
| 1877 | 159 |
| 1878 | 153 |
| 1879 | 141 |
| 1880 | 160 |
| 1881 | 153 |
| 1882 | 158 |
| 1883 | 166 |
| 1884 | 138 |
| 1885 | 144 |
| 1886 | 152 |
| 1887 | 178 |
| 1888 | 173 |
| 1889 | 173 |
| 1890 | 131 |
| 1891 | 188 |
| 1892 | 132 |
| 1893 | 158 |
| 1894 | 166 |
| 1895 | 210 |
| 1896 | 192 |
| 1897 | 178 |
| 1898 | 195 |
| 1899 | 171 |
| 1900 | 98 |
| 1901 | 76 |
| 1902 | 60 |
| 1903 | 64 |
| 1904 | 214 |
| 1905 | 92 |
| 1906 | 223 |
| 1907 | 214 |
| 1908 | 122 |
| 1909 | 173 |
| 1910 | 187 |
| 1911 | 217 |
| 1912 | 230 |
| 1913 | 264 |
| 1914 | 253 |
| 1915 | 286 |
| 1916 | 299 |
| 1917 | 264 |
| 1918 | 286 |
| 1919 | 309 |
| 1920 | 257 |
| 1921 | 280 |
| 1922 | 302 |
| 1923 | 342 |
| 1924 | 368 |
| 1925 | 424 |
| 1926 | 430 |
| 1927 | 447 |
| 1928 | 402 |
| 1929 | 391 |
| 1930 | 390 |
| 1931 | 383 |
| 1932 | 353 |
| 1933 | 398 |
| 1934 | 368 |
| 1935 | 358 |
| 1936 | 339 |
| 1937 | 322 |
| 1938 | 326 |
| 1939 | 314 |
| 1940 | 321 |
| 1941 | 314 |
| 1942 | 288 |
| 1943 | 313 |
| 1944 | 301 |
| 1945 | 1276 |
| 1946 | 6422 |
| 1947 | 7432 |
| 1948 | 7527 |
| 1949 | 6220 |
| 1950 | 6903 |
| 1951 | 8068 |
| 1952 | 8480 |
| 1953 | 8323 |
| 1954 | 8066 |
| 1955 | 8304 |
| 1956 | 8363 |
| 1957 | 8164 |
| 1958 | 8721 |
| 1959 | 8049 |
| 1960 | 7177 |
| 1961 | 6512 |
| 1962 | 7332 |
| 1963 | 7672 |
| 1964 | 9010 |
| 1965 | 9662 |
| 1966 | 9942 |
| 1967 | 10452 |
| 1968 | 10661 |
| 1969 | 11270 |
| 1970 | 11405 |
| 1971 | 11360 |
| 1972 | 11422 |
| 1973 | 12011 |
| 1974 | 11915 |
| 1975 | 12951 |
| 1976 | 13575 |
| 1977 | 14344 |
| 1978 | 14729 |
| 1979 | 15142 |
| 1980 | 17202 |
| 1981 | 20126 |
| 1982 | 21465 |
| 1983 | 23538 |
| 1984 | 24459 |
| 1985 | 25026 |
| 1986 | 26440 |
| 1987 | 26730 |
| 1988 | 26206 |
| 1989 | 26366 |
| 1990 | 26784 |
| 1991 | 26905 |
| 1992 | 27310 |
| 1993 | 27272 |
| 1994 | 27265 |
| 1995 | 28063 |
| 1996 | 28674 |
| 1997 | 28904 |
| 1998 | 29227 |
| 1999 | 30383 |
| 2000 | 31877 |
| 2001 | 34471 |
| 2002 | 35383 |
| 2003 | 37035 |
| 2004 | 38218 |
| 2005 | 40064 |
| 2006 | 41279 |
| 2007 | 41796 |
| 2008 | 42564 |
| 2009 | 42425 |
| 2010 | 43695 |
| 2011 | 45690 |
| 2012 | 45550 |
| 2013 | 47873 |
| 2014 | 50176 |
| 2015 | 52419 |
| 2016 | 55057 |
| 2017 | 55322 |
| 2018 | 55831 |
| 2019 | 57940 |
| 2020 | 66560 |
| 2021 | 69090 |
| 2022 | 65074 |
| 2023 | 63795 |
| 2024 | 66177 |
| 2025 | 64833 |
| 2026 | 485 |
| 2027 | 2 |