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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1860 | 1 |
| 1867 | 1 |
| 1868 | 4 |
| 1870 | 1 |
| 1872 | 1 |
| 1882 | 1 |
| 1887 | 2 |
| 1888 | 2 |
| 1892 | 1 |
| 1893 | 1 |
| 1904 | 1 |
| 1910 | 2 |
| 1911 | 4 |
| 1912 | 2 |
| 1913 | 1 |
| 1914 | 1 |
| 1919 | 1 |
| 1920 | 1 |
| 1922 | 1 |
| 1923 | 3 |
| 1924 | 1 |
| 1925 | 1 |
| 1926 | 1 |
| 1928 | 1 |
| 1933 | 2 |
| 1938 | 1 |
| 1940 | 1 |
| 1941 | 1 |
| 1942 | 2 |
| 1945 | 5 |
| 1946 | 9 |
| 1947 | 19 |
| 1948 | 10 |
| 1949 | 13 |
| 1950 | 13 |
| 1951 | 13 |
| 1952 | 11 |
| 1953 | 9 |
| 1954 | 10 |
| 1955 | 10 |
| 1956 | 6 |
| 1957 | 15 |
| 1958 | 19 |
| 1959 | 7 |
| 1960 | 17 |
| 1961 | 15 |
| 1962 | 17 |
| 1963 | 23 |
| 1964 | 13 |
| 1965 | 15 |
| 1966 | 14 |
| 1967 | 22 |
| 1968 | 30 |
| 1969 | 39 |
| 1970 | 27 |
| 1971 | 29 |
| 1972 | 29 |
| 1973 | 33 |
| 1974 | 42 |
| 1975 | 40 |
| 1976 | 41 |
| 1977 | 36 |
| 1978 | 53 |
| 1979 | 53 |
| 1980 | 39 |
| 1981 | 56 |
| 1982 | 66 |
| 1983 | 68 |
| 1984 | 68 |
| 1985 | 69 |
| 1986 | 84 |
| 1987 | 62 |
| 1988 | 90 |
| 1989 | 68 |
| 1990 | 93 |
| 1991 | 108 |
| 1992 | 98 |
| 1993 | 97 |
| 1994 | 93 |
| 1995 | 92 |
| 1996 | 118 |
| 1997 | 117 |
| 1998 | 98 |
| 1999 | 132 |
| 2000 | 110 |
| 2001 | 117 |
| 2002 | 120 |
| 2003 | 134 |
| 2004 | 136 |
| 2005 | 158 |
| 2006 | 191 |
| 2007 | 183 |
| 2008 | 189 |
| 2009 | 195 |
| 2010 | 227 |
| 2011 | 240 |
| 2012 | 240 |
| 2013 | 256 |
| 2014 | 245 |
| 2015 | 245 |
| 2016 | 253 |
| 2017 | 263 |
| 2018 | 261 |
| 2019 | 263 |
| 2020 | 297 |
| 2021 | 344 |
| 2022 | 337 |
| 2023 | 112 |