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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1800 | 1 |
| 1809 | 1 |
| 1820 | 1 |
| 1821 | 1 |
| 1822 | 1 |
| 1823 | 1 |
| 1825 | 1 |
| 1828 | 2 |
| 1830 | 2 |
| 1832 | 2 |
| 1845 | 1 |
| 1848 | 1 |
| 1849 | 1 |
| 1851 | 1 |
| 1855 | 2 |
| 1856 | 2 |
| 1857 | 3 |
| 1858 | 2 |
| 1860 | 1 |
| 1867 | 2 |
| 1870 | 4 |
| 1872 | 2 |
| 1874 | 3 |
| 1875 | 3 |
| 1876 | 1 |
| 1877 | 2 |
| 1878 | 1 |
| 1879 | 2 |
| 1881 | 1 |
| 1883 | 4 |
| 1884 | 5 |
| 1885 | 9 |
| 1886 | 10 |
| 1887 | 7 |
| 1888 | 5 |
| 1889 | 1 |
| 1890 | 2 |
| 1892 | 2 |
| 1893 | 4 |
| 1894 | 3 |
| 1895 | 3 |
| 1896 | 3 |
| 1897 | 16 |
| 1898 | 10 |
| 1899 | 2 |
| 1900 | 5 |
| 1901 | 13 |
| 1902 | 7 |
| 1903 | 4 |
| 1904 | 3 |
| 1905 | 14 |
| 1906 | 2 |
| 1907 | 7 |
| 1908 | 6 |
| 1909 | 5 |
| 1910 | 6 |
| 1911 | 6 |
| 1912 | 11 |
| 1913 | 6 |
| 1914 | 9 |
| 1915 | 12 |
| 1916 | 10 |
| 1917 | 10 |
| 1918 | 9 |
| 1919 | 13 |
| 1920 | 13 |
| 1921 | 15 |
| 1922 | 17 |
| 1923 | 17 |
| 1924 | 17 |
| 1925 | 17 |
| 1926 | 14 |
| 1927 | 15 |
| 1928 | 17 |
| 1929 | 15 |
| 1930 | 15 |
| 1931 | 11 |
| 1932 | 17 |
| 1933 | 8 |
| 1934 | 17 |
| 1935 | 15 |
| 1936 | 21 |
| 1937 | 15 |
| 1938 | 12 |
| 1939 | 16 |
| 1940 | 11 |
| 1941 | 12 |
| 1942 | 17 |
| 1943 | 13 |
| 1944 | 20 |
| 1945 | 33 |
| 1946 | 92 |
| 1947 | 106 |
| 1948 | 113 |
| 1949 | 125 |
| 1950 | 112 |
| 1951 | 128 |
| 1952 | 91 |
| 1953 | 118 |
| 1954 | 135 |
| 1955 | 134 |
| 1956 | 119 |
| 1957 | 143 |
| 1958 | 123 |
| 1959 | 167 |
| 1960 | 157 |
| 1961 | 161 |
| 1962 | 145 |
| 1963 | 197 |
| 1964 | 178 |
| 1965 | 178 |
| 1966 | 212 |
| 1967 | 208 |
| 1968 | 242 |
| 1969 | 255 |
| 1970 | 265 |
| 1971 | 264 |
| 1972 | 278 |
| 1973 | 313 |
| 1974 | 358 |
| 1975 | 344 |
| 1976 | 372 |
| 1977 | 402 |
| 1978 | 392 |
| 1979 | 421 |
| 1980 | 407 |
| 1981 | 461 |
| 1982 | 517 |
| 1983 | 565 |
| 1984 | 577 |
| 1985 | 569 |
| 1986 | 603 |
| 1987 | 677 |
| 1988 | 678 |
| 1989 | 738 |
| 1990 | 805 |
| 1991 | 877 |
| 1992 | 834 |
| 1993 | 860 |
| 1994 | 929 |
| 1995 | 986 |
| 1996 | 974 |
| 1997 | 878 |
| 1998 | 945 |
| 1999 | 922 |
| 2000 | 1059 |
| 2001 | 1147 |
| 2002 | 1149 |
| 2003 | 1221 |
| 2004 | 1312 |
| 2005 | 1478 |
| 2006 | 1466 |
| 2007 | 1701 |
| 2008 | 1814 |
| 2009 | 1931 |
| 2010 | 2179 |
| 2011 | 2359 |
| 2012 | 2411 |
| 2013 | 2783 |
| 2014 | 3031 |
| 2015 | 3395 |
| 2016 | 3576 |
| 2017 | 3734 |
| 2018 | 3885 |
| 2019 | 4144 |
| 2020 | 4700 |
| 2021 | 5224 |
| 2022 | 5036 |
| 2023 | 4828 |
| 2024 | 2022 |