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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1803 | 1 |
| 1805 | 1 |
| 1818 | 1 |
| 1819 | 1 |
| 1821 | 1 |
| 1823 | 1 |
| 1824 | 1 |
| 1830 | 1 |
| 1843 | 2 |
| 1845 | 3 |
| 1847 | 5 |
| 1848 | 2 |
| 1849 | 1 |
| 1850 | 5 |
| 1852 | 2 |
| 1853 | 2 |
| 1854 | 1 |
| 1855 | 3 |
| 1856 | 1 |
| 1857 | 2 |
| 1858 | 3 |
| 1860 | 2 |
| 1862 | 1 |
| 1864 | 2 |
| 1865 | 2 |
| 1866 | 2 |
| 1871 | 5 |
| 1872 | 1 |
| 1873 | 1 |
| 1874 | 1 |
| 1875 | 2 |
| 1876 | 2 |
| 1877 | 1 |
| 1878 | 2 |
| 1879 | 6 |
| 1880 | 1 |
| 1881 | 2 |
| 1882 | 4 |
| 1883 | 8 |
| 1884 | 4 |
| 1885 | 1 |
| 1886 | 1 |
| 1887 | 6 |
| 1888 | 3 |
| 1889 | 10 |
| 1890 | 9 |
| 1891 | 9 |
| 1892 | 5 |
| 1893 | 4 |
| 1894 | 3 |
| 1895 | 6 |
| 1896 | 8 |
| 1897 | 6 |
| 1898 | 8 |
| 1899 | 8 |
| 1900 | 5 |
| 1901 | 6 |
| 1902 | 6 |
| 1903 | 7 |
| 1904 | 10 |
| 1905 | 5 |
| 1906 | 5 |
| 1907 | 9 |
| 1908 | 9 |
| 1909 | 11 |
| 1910 | 12 |
| 1911 | 10 |
| 1912 | 8 |
| 1913 | 9 |
| 1914 | 8 |
| 1915 | 6 |
| 1916 | 7 |
| 1917 | 2 |
| 1918 | 4 |
| 1919 | 4 |
| 1920 | 6 |
| 1921 | 7 |
| 1922 | 7 |
| 1923 | 7 |
| 1924 | 9 |
| 1925 | 11 |
| 1926 | 5 |
| 1927 | 7 |
| 1928 | 7 |
| 1929 | 9 |
| 1930 | 8 |
| 1931 | 4 |
| 1932 | 8 |
| 1933 | 6 |
| 1934 | 9 |
| 1935 | 7 |
| 1936 | 7 |
| 1937 | 6 |
| 1938 | 10 |
| 1939 | 4 |
| 1940 | 7 |
| 1941 | 13 |
| 1942 | 7 |
| 1943 | 4 |
| 1944 | 8 |
| 1945 | 33 |
| 1946 | 93 |
| 1947 | 114 |
| 1948 | 115 |
| 1949 | 99 |
| 1950 | 114 |
| 1951 | 134 |
| 1952 | 102 |
| 1953 | 128 |
| 1954 | 113 |
| 1955 | 121 |
| 1956 | 135 |
| 1957 | 137 |
| 1958 | 141 |
| 1959 | 135 |
| 1960 | 153 |
| 1961 | 158 |
| 1962 | 152 |
| 1963 | 168 |
| 1964 | 192 |
| 1965 | 240 |
| 1966 | 245 |
| 1967 | 290 |
| 1968 | 311 |
| 1969 | 318 |
| 1970 | 316 |
| 1971 | 361 |
| 1972 | 366 |
| 1973 | 372 |
| 1974 | 381 |
| 1975 | 454 |
| 1976 | 485 |
| 1977 | 516 |
| 1978 | 492 |
| 1979 | 443 |
| 1980 | 499 |
| 1981 | 548 |
| 1982 | 542 |
| 1983 | 574 |
| 1984 | 585 |
| 1985 | 689 |
| 1986 | 701 |
| 1987 | 710 |
| 1988 | 825 |
| 1989 | 853 |
| 1990 | 795 |
| 1991 | 833 |
| 1992 | 859 |
| 1993 | 910 |
| 1994 | 883 |
| 1995 | 951 |
| 1996 | 1030 |
| 1997 | 950 |
| 1998 | 968 |
| 1999 | 993 |
| 2000 | 1124 |
| 2001 | 1117 |
| 2002 | 1132 |
| 2003 | 1172 |
| 2004 | 1329 |
| 2005 | 1419 |
| 2006 | 1691 |
| 2007 | 1755 |
| 2008 | 1906 |
| 2009 | 1935 |
| 2010 | 2050 |
| 2011 | 2224 |
| 2012 | 2379 |
| 2013 | 2617 |
| 2014 | 2888 |
| 2015 | 3324 |
| 2016 | 3405 |
| 2017 | 3463 |
| 2018 | 3602 |
| 2019 | 3608 |
| 2020 | 4205 |
| 2021 | 4591 |
| 2022 | 4278 |
| 2023 | 4016 |
| 2024 | 3936 |
| 2025 | 3544 |
| 2026 | 15 |