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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1863 | 1 |
| 1866 | 1 |
| 1868 | 1 |
| 1871 | 2 |
| 1872 | 1 |
| 1873 | 1 |
| 1878 | 4 |
| 1880 | 4 |
| 1881 | 2 |
| 1885 | 3 |
| 1886 | 4 |
| 1887 | 3 |
| 1888 | 1 |
| 1890 | 1 |
| 1895 | 4 |
| 1897 | 1 |
| 1899 | 3 |
| 1900 | 1 |
| 1901 | 2 |
| 1902 | 1 |
| 1903 | 3 |
| 1904 | 2 |
| 1905 | 2 |
| 1906 | 1 |
| 1908 | 2 |
| 1909 | 1 |
| 1910 | 2 |
| 1911 | 1 |
| 1912 | 2 |
| 1914 | 1 |
| 1915 | 4 |
| 1918 | 2 |
| 1919 | 1 |
| 1921 | 1 |
| 1922 | 1 |
| 1923 | 2 |
| 1924 | 1 |
| 1925 | 2 |
| 1926 | 1 |
| 1929 | 1 |
| 1930 | 1 |
| 1932 | 1 |
| 1933 | 2 |
| 1934 | 1 |
| 1935 | 1 |
| 1936 | 1 |
| 1937 | 1 |
| 1938 | 1 |
| 1939 | 1 |
| 1940 | 2 |
| 1945 | 5 |
| 1946 | 11 |
| 1947 | 9 |
| 1948 | 3 |
| 1949 | 4 |
| 1950 | 5 |
| 1951 | 10 |
| 1952 | 3 |
| 1953 | 3 |
| 1954 | 3 |
| 1955 | 7 |
| 1956 | 9 |
| 1957 | 4 |
| 1958 | 10 |
| 1959 | 5 |
| 1960 | 10 |
| 1961 | 5 |
| 1962 | 6 |
| 1963 | 10 |
| 1964 | 8 |
| 1965 | 9 |
| 1966 | 12 |
| 1967 | 16 |
| 1968 | 17 |
| 1969 | 19 |
| 1970 | 23 |
| 1971 | 13 |
| 1972 | 17 |
| 1973 | 22 |
| 1974 | 15 |
| 1975 | 26 |
| 1976 | 20 |
| 1977 | 16 |
| 1978 | 16 |
| 1979 | 12 |
| 1980 | 18 |
| 1981 | 27 |
| 1982 | 29 |
| 1983 | 28 |
| 1984 | 21 |
| 1985 | 27 |
| 1986 | 35 |
| 1987 | 49 |
| 1988 | 43 |
| 1989 | 56 |
| 1990 | 55 |
| 1991 | 59 |
| 1992 | 65 |
| 1993 | 58 |
| 1994 | 65 |
| 1995 | 72 |
| 1996 | 68 |
| 1997 | 82 |
| 1998 | 71 |
| 1999 | 92 |
| 2000 | 66 |
| 2001 | 71 |
| 2002 | 68 |
| 2003 | 71 |
| 2004 | 91 |
| 2005 | 104 |
| 2006 | 125 |
| 2007 | 139 |
| 2008 | 129 |
| 2009 | 119 |
| 2010 | 155 |
| 2011 | 157 |
| 2012 | 181 |
| 2013 | 180 |
| 2014 | 202 |
| 2015 | 195 |
| 2016 | 215 |
| 2017 | 243 |
| 2018 | 238 |
| 2019 | 268 |
| 2020 | 303 |
| 2021 | 395 |
| 2022 | 366 |
| 2023 | 231 |