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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1866 | 1 |
| 1870 | 1 |
| 1877 | 1 |
| 1880 | 2 |
| 1881 | 1 |
| 1882 | 2 |
| 1885 | 1 |
| 1886 | 3 |
| 1887 | 1 |
| 1891 | 1 |
| 1894 | 1 |
| 1898 | 1 |
| 1902 | 1 |
| 1906 | 1 |
| 1907 | 2 |
| 1911 | 1 |
| 1913 | 2 |
| 1917 | 2 |
| 1918 | 1 |
| 1920 | 2 |
| 1923 | 1 |
| 1924 | 2 |
| 1925 | 3 |
| 1926 | 6 |
| 1927 | 1 |
| 1929 | 3 |
| 1930 | 3 |
| 1931 | 4 |
| 1932 | 2 |
| 1933 | 4 |
| 1934 | 3 |
| 1935 | 3 |
| 1936 | 6 |
| 1937 | 2 |
| 1938 | 11 |
| 1939 | 3 |
| 1940 | 3 |
| 1941 | 3 |
| 1942 | 2 |
| 1943 | 2 |
| 1944 | 7 |
| 1945 | 3 |
| 1946 | 18 |
| 1947 | 20 |
| 1948 | 17 |
| 1949 | 17 |
| 1950 | 25 |
| 1951 | 25 |
| 1952 | 24 |
| 1953 | 36 |
| 1954 | 35 |
| 1955 | 36 |
| 1956 | 43 |
| 1957 | 31 |
| 1958 | 36 |
| 1959 | 34 |
| 1960 | 38 |
| 1961 | 43 |
| 1962 | 82 |
| 1963 | 105 |
| 1964 | 121 |
| 1965 | 147 |
| 1966 | 172 |
| 1967 | 198 |
| 1968 | 207 |
| 1969 | 261 |
| 1970 | 291 |
| 1971 | 311 |
| 1972 | 350 |
| 1973 | 363 |
| 1974 | 386 |
| 1975 | 368 |
| 1976 | 395 |
| 1977 | 450 |
| 1978 | 486 |
| 1979 | 480 |
| 1980 | 502 |
| 1981 | 498 |
| 1982 | 532 |
| 1983 | 528 |
| 1984 | 563 |
| 1985 | 625 |
| 1986 | 673 |
| 1987 | 722 |
| 1988 | 732 |
| 1989 | 765 |
| 1990 | 856 |
| 1991 | 794 |
| 1992 | 942 |
| 1993 | 907 |
| 1994 | 951 |
| 1995 | 1067 |
| 1996 | 1076 |
| 1997 | 1002 |
| 1998 | 1065 |
| 1999 | 1190 |
| 2000 | 1367 |
| 2001 | 1444 |
| 2002 | 1590 |
| 2003 | 1801 |
| 2004 | 2117 |
| 2005 | 2400 |
| 2006 | 2955 |
| 2007 | 3235 |
| 2008 | 3766 |
| 2009 | 4361 |
| 2010 | 4902 |
| 2011 | 5813 |
| 2012 | 6519 |
| 2013 | 7277 |
| 2014 | 7839 |
| 2015 | 8356 |
| 2016 | 8643 |
| 2017 | 9044 |
| 2018 | 9267 |
| 2019 | 10205 |
| 2020 | 13201 |
| 2021 | 15822 |
| 2022 | 16486 |
| 2023 | 6986 |