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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1790 | 1 |
| 1865 | 3 |
| 1873 | 2 |
| 1876 | 1 |
| 1881 | 3 |
| 1884 | 2 |
| 1886 | 2 |
| 1893 | 1 |
| 1894 | 1 |
| 1900 | 3 |
| 1901 | 3 |
| 1902 | 3 |
| 1903 | 1 |
| 1904 | 1 |
| 1905 | 1 |
| 1906 | 1 |
| 1907 | 1 |
| 1908 | 2 |
| 1910 | 1 |
| 1911 | 3 |
| 1912 | 5 |
| 1913 | 1 |
| 1914 | 2 |
| 1915 | 3 |
| 1916 | 1 |
| 1917 | 2 |
| 1918 | 1 |
| 1919 | 4 |
| 1920 | 1 |
| 1921 | 4 |
| 1923 | 2 |
| 1927 | 1 |
| 1928 | 1 |
| 1929 | 4 |
| 1931 | 1 |
| 1932 | 1 |
| 1933 | 1 |
| 1935 | 1 |
| 1945 | 2 |
| 1946 | 8 |
| 1947 | 6 |
| 1948 | 11 |
| 1949 | 13 |
| 1950 | 12 |
| 1951 | 13 |
| 1952 | 14 |
| 1953 | 11 |
| 1954 | 7 |
| 1955 | 11 |
| 1956 | 9 |
| 1957 | 8 |
| 1958 | 6 |
| 1959 | 10 |
| 1960 | 5 |
| 1961 | 8 |
| 1962 | 8 |
| 1963 | 11 |
| 1964 | 15 |
| 1965 | 13 |
| 1966 | 14 |
| 1967 | 19 |
| 1968 | 18 |
| 1969 | 9 |
| 1970 | 11 |
| 1971 | 10 |
| 1972 | 9 |
| 1973 | 14 |
| 1974 | 18 |
| 1975 | 9 |
| 1976 | 16 |
| 1977 | 12 |
| 1978 | 33 |
| 1979 | 27 |
| 1980 | 16 |
| 1981 | 23 |
| 1982 | 29 |
| 1983 | 26 |
| 1984 | 45 |
| 1985 | 37 |
| 1986 | 54 |
| 1987 | 44 |
| 1988 | 50 |
| 1989 | 48 |
| 1990 | 56 |
| 1991 | 68 |
| 1992 | 69 |
| 1993 | 81 |
| 1994 | 69 |
| 1995 | 82 |
| 1996 | 58 |
| 1997 | 76 |
| 1998 | 104 |
| 1999 | 102 |
| 2000 | 106 |
| 2001 | 135 |
| 2002 | 108 |
| 2003 | 126 |
| 2004 | 147 |
| 2005 | 145 |
| 2006 | 142 |
| 2007 | 167 |
| 2008 | 188 |
| 2009 | 159 |
| 2010 | 204 |
| 2011 | 228 |
| 2012 | 229 |
| 2013 | 251 |
| 2014 | 225 |
| 2015 | 246 |
| 2016 | 243 |
| 2017 | 217 |
| 2018 | 235 |
| 2019 | 225 |
| 2020 | 249 |
| 2021 | 279 |
| 2022 | 270 |
| 2023 | 198 |