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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1817 | 1 |
| 1839 | 1 |
| 1840 | 2 |
| 1847 | 2 |
| 1848 | 1 |
| 1850 | 1 |
| 1851 | 1 |
| 1852 | 1 |
| 1854 | 2 |
| 1857 | 1 |
| 1862 | 1 |
| 1865 | 1 |
| 1867 | 1 |
| 1868 | 1 |
| 1869 | 1 |
| 1872 | 2 |
| 1876 | 1 |
| 1877 | 1 |
| 1878 | 2 |
| 1879 | 1 |
| 1880 | 1 |
| 1883 | 1 |
| 1887 | 1 |
| 1889 | 1 |
| 1890 | 2 |
| 1891 | 9 |
| 1892 | 1 |
| 1894 | 1 |
| 1896 | 5 |
| 1897 | 5 |
| 1898 | 5 |
| 1899 | 3 |
| 1900 | 1 |
| 1901 | 3 |
| 1902 | 4 |
| 1903 | 3 |
| 1905 | 5 |
| 1906 | 2 |
| 1907 | 6 |
| 1908 | 7 |
| 1909 | 10 |
| 1910 | 8 |
| 1911 | 16 |
| 1912 | 21 |
| 1913 | 17 |
| 1914 | 12 |
| 1915 | 12 |
| 1916 | 23 |
| 1917 | 26 |
| 1918 | 27 |
| 1919 | 33 |
| 1920 | 30 |
| 1921 | 23 |
| 1922 | 38 |
| 1923 | 44 |
| 1924 | 35 |
| 1925 | 30 |
| 1926 | 34 |
| 1927 | 42 |
| 1928 | 55 |
| 1929 | 41 |
| 1930 | 44 |
| 1931 | 39 |
| 1932 | 41 |
| 1933 | 40 |
| 1934 | 35 |
| 1935 | 31 |
| 1936 | 27 |
| 1937 | 38 |
| 1938 | 34 |
| 1939 | 26 |
| 1940 | 38 |
| 1941 | 58 |
| 1942 | 55 |
| 1943 | 39 |
| 1944 | 51 |
| 1945 | 60 |
| 1946 | 83 |
| 1947 | 194 |
| 1948 | 222 |
| 1949 | 244 |
| 1950 | 485 |
| 1951 | 544 |
| 1952 | 605 |
| 1953 | 622 |
| 1954 | 643 |
| 1955 | 570 |
| 1956 | 624 |
| 1957 | 598 |
| 1958 | 566 |
| 1959 | 308 |
| 1960 | 186 |
| 1961 | 222 |
| 1962 | 315 |
| 1963 | 659 |
| 1964 | 851 |
| 1965 | 973 |
| 1966 | 999 |
| 1967 | 1164 |
| 1968 | 1214 |
| 1969 | 1229 |
| 1970 | 1354 |
| 1971 | 1216 |
| 1972 | 1181 |
| 1973 | 1100 |
| 1974 | 1335 |
| 1975 | 7672 |
| 1976 | 7926 |
| 1977 | 7080 |
| 1978 | 6958 |
| 1979 | 7168 |
| 1980 | 7665 |
| 1981 | 8169 |
| 1982 | 8702 |
| 1983 | 9754 |
| 1984 | 10985 |
| 1985 | 10970 |
| 1986 | 11210 |
| 1987 | 11801 |
| 1988 | 12019 |
| 1989 | 14691 |
| 1990 | 14761 |
| 1991 | 14480 |
| 1992 | 14507 |
| 1993 | 15337 |
| 1994 | 15582 |
| 1995 | 16235 |
| 1996 | 16930 |
| 1997 | 17340 |
| 1998 | 17664 |
| 1999 | 17893 |
| 2000 | 18980 |
| 2001 | 19937 |
| 2002 | 20310 |
| 2003 | 21640 |
| 2004 | 23064 |
| 2005 | 25016 |
| 2006 | 26428 |
| 2007 | 28283 |
| 2008 | 30169 |
| 2009 | 31578 |
| 2010 | 33625 |
| 2011 | 36625 |
| 2012 | 40003 |
| 2013 | 42631 |
| 2014 | 45178 |
| 2015 | 47009 |
| 2016 | 48764 |
| 2017 | 50837 |
| 2018 | 53520 |
| 2019 | 56731 |
| 2020 | 65107 |
| 2021 | 71864 |
| 2022 | 70156 |
| 2023 | 65836 |
| 2024 | 23669 |