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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1856 | 1 |
| 1880 | 1 |
| 1889 | 1 |
| 1890 | 1 |
| 1903 | 1 |
| 1904 | 1 |
| 1905 | 1 |
| 1906 | 1 |
| 1914 | 1 |
| 1916 | 1 |
| 1920 | 1 |
| 1921 | 1 |
| 1922 | 9 |
| 1923 | 12 |
| 1924 | 1 |
| 1925 | 1 |
| 1926 | 2 |
| 1928 | 1 |
| 1930 | 3 |
| 1931 | 3 |
| 1932 | 3 |
| 1934 | 1 |
| 1935 | 1 |
| 1936 | 1 |
| 1939 | 3 |
| 1940 | 2 |
| 1941 | 2 |
| 1942 | 1 |
| 1943 | 2 |
| 1944 | 1 |
| 1945 | 6 |
| 1946 | 13 |
| 1947 | 10 |
| 1948 | 16 |
| 1949 | 14 |
| 1950 | 24 |
| 1951 | 16 |
| 1952 | 10 |
| 1953 | 9 |
| 1954 | 15 |
| 1955 | 15 |
| 1956 | 19 |
| 1957 | 7 |
| 1958 | 13 |
| 1959 | 18 |
| 1960 | 17 |
| 1961 | 15 |
| 1962 | 14 |
| 1963 | 25 |
| 1964 | 18 |
| 1965 | 26 |
| 1966 | 27 |
| 1967 | 41 |
| 1968 | 44 |
| 1969 | 44 |
| 1970 | 48 |
| 1971 | 38 |
| 1972 | 40 |
| 1973 | 35 |
| 1974 | 60 |
| 1975 | 77 |
| 1976 | 81 |
| 1977 | 68 |
| 1978 | 71 |
| 1979 | 83 |
| 1980 | 89 |
| 1981 | 76 |
| 1982 | 76 |
| 1983 | 73 |
| 1984 | 84 |
| 1985 | 78 |
| 1986 | 81 |
| 1987 | 77 |
| 1988 | 90 |
| 1989 | 117 |
| 1990 | 89 |
| 1991 | 116 |
| 1992 | 99 |
| 1993 | 100 |
| 1994 | 88 |
| 1995 | 108 |
| 1996 | 120 |
| 1997 | 125 |
| 1998 | 104 |
| 1999 | 112 |
| 2000 | 128 |
| 2001 | 123 |
| 2002 | 123 |
| 2003 | 126 |
| 2004 | 157 |
| 2005 | 171 |
| 2006 | 192 |
| 2007 | 183 |
| 2008 | 181 |
| 2009 | 191 |
| 2010 | 171 |
| 2011 | 199 |
| 2012 | 231 |
| 2013 | 261 |
| 2014 | 261 |
| 2015 | 284 |
| 2016 | 249 |
| 2017 | 202 |
| 2018 | 259 |
| 2019 | 238 |
| 2020 | 253 |
| 2021 | 296 |
| 2022 | 258 |
| 2023 | 120 |