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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1862 | 1 |
| 1867 | 4 |
| 1868 | 3 |
| 1869 | 1 |
| 1871 | 7 |
| 1872 | 4 |
| 1873 | 2 |
| 1874 | 1 |
| 1876 | 1 |
| 1877 | 7 |
| 1878 | 2 |
| 1879 | 1 |
| 1880 | 2 |
| 1881 | 3 |
| 1882 | 2 |
| 1883 | 2 |
| 1884 | 3 |
| 1885 | 2 |
| 1887 | 1 |
| 1889 | 3 |
| 1890 | 1 |
| 1892 | 9 |
| 1893 | 3 |
| 1894 | 10 |
| 1895 | 12 |
| 1896 | 22 |
| 1897 | 24 |
| 1898 | 9 |
| 1899 | 9 |
| 1900 | 10 |
| 1901 | 9 |
| 1903 | 4 |
| 1904 | 8 |
| 1905 | 3 |
| 1906 | 13 |
| 1907 | 4 |
| 1908 | 1 |
| 1909 | 1 |
| 1910 | 4 |
| 1911 | 3 |
| 1912 | 2 |
| 1913 | 2 |
| 1914 | 3 |
| 1915 | 5 |
| 1916 | 4 |
| 1917 | 10 |
| 1918 | 5 |
| 1919 | 7 |
| 1920 | 7 |
| 1921 | 7 |
| 1922 | 11 |
| 1923 | 3 |
| 1924 | 9 |
| 1925 | 9 |
| 1926 | 15 |
| 1927 | 12 |
| 1928 | 8 |
| 1929 | 10 |
| 1930 | 14 |
| 1931 | 14 |
| 1932 | 14 |
| 1933 | 20 |
| 1934 | 12 |
| 1935 | 10 |
| 1936 | 12 |
| 1937 | 22 |
| 1938 | 20 |
| 1939 | 14 |
| 1940 | 6 |
| 1941 | 8 |
| 1942 | 6 |
| 1943 | 6 |
| 1944 | 4 |
| 1945 | 4 |
| 1946 | 30 |
| 1947 | 23 |
| 1948 | 20 |
| 1949 | 10 |
| 1950 | 25 |
| 1951 | 33 |
| 1952 | 49 |
| 1953 | 58 |
| 1954 | 40 |
| 1955 | 33 |
| 1956 | 20 |
| 1957 | 9 |
| 1958 | 32 |
| 1959 | 17 |
| 1960 | 13 |
| 1961 | 7 |
| 1962 | 6 |
| 1963 | 16 |
| 1964 | 34 |
| 1965 | 34 |
| 1966 | 29 |
| 1967 | 63 |
| 1968 | 77 |
| 1969 | 62 |
| 1970 | 92 |
| 1971 | 87 |
| 1972 | 104 |
| 1973 | 148 |
| 1974 | 145 |
| 1975 | 186 |
| 1976 | 170 |
| 1977 | 197 |
| 1978 | 273 |
| 1979 | 313 |
| 1980 | 199 |
| 1981 | 190 |
| 1982 | 230 |
| 1983 | 203 |
| 1984 | 234 |
| 1985 | 254 |
| 1986 | 216 |
| 1987 | 348 |
| 1988 | 354 |
| 1989 | 375 |
| 1990 | 383 |
| 1991 | 487 |
| 1992 | 589 |
| 1993 | 731 |
| 1994 | 664 |
| 1995 | 837 |
| 1996 | 806 |
| 1997 | 701 |
| 1998 | 805 |
| 1999 | 880 |
| 2000 | 812 |
| 2001 | 731 |
| 2002 | 791 |
| 2003 | 828 |
| 2004 | 799 |
| 2005 | 711 |
| 2006 | 636 |
| 2007 | 703 |
| 2008 | 837 |
| 2009 | 758 |
| 2010 | 777 |
| 2011 | 1354 |
| 2012 | 2076 |
| 2013 | 2484 |
| 2014 | 2763 |
| 2015 | 3485 |
| 2016 | 3827 |
| 2017 | 4475 |
| 2018 | 4572 |
| 2019 | 6453 |
| 2020 | 6840 |
| 2021 | 8048 |
| 2022 | 8100 |
| 2023 | 7108 |
| 2024 | 2972 |