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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1817 | 1 |
| 1878 | 1 |
| 1891 | 1 |
| 1895 | 1 |
| 1896 | 2 |
| 1897 | 1 |
| 1901 | 1 |
| 1902 | 1 |
| 1903 | 1 |
| 1904 | 2 |
| 1905 | 1 |
| 1906 | 2 |
| 1907 | 1 |
| 1908 | 1 |
| 1911 | 3 |
| 1912 | 1 |
| 1913 | 1 |
| 1914 | 2 |
| 1915 | 1 |
| 1916 | 1 |
| 1917 | 1 |
| 1918 | 2 |
| 1921 | 4 |
| 1926 | 2 |
| 1927 | 2 |
| 1928 | 2 |
| 1929 | 1 |
| 1930 | 1 |
| 1931 | 1 |
| 1932 | 4 |
| 1936 | 1 |
| 1938 | 3 |
| 1939 | 3 |
| 1940 | 3 |
| 1941 | 3 |
| 1942 | 1 |
| 1943 | 1 |
| 1945 | 1 |
| 1946 | 11 |
| 1947 | 18 |
| 1948 | 11 |
| 1949 | 7 |
| 1950 | 20 |
| 1951 | 16 |
| 1952 | 8 |
| 1953 | 15 |
| 1954 | 11 |
| 1955 | 14 |
| 1956 | 12 |
| 1957 | 9 |
| 1958 | 12 |
| 1959 | 15 |
| 1960 | 16 |
| 1961 | 10 |
| 1962 | 32 |
| 1963 | 17 |
| 1964 | 15 |
| 1965 | 33 |
| 1966 | 21 |
| 1967 | 44 |
| 1968 | 36 |
| 1969 | 37 |
| 1970 | 51 |
| 1971 | 62 |
| 1972 | 48 |
| 1973 | 43 |
| 1974 | 44 |
| 1975 | 54 |
| 1976 | 53 |
| 1977 | 55 |
| 1978 | 62 |
| 1979 | 77 |
| 1980 | 52 |
| 1981 | 54 |
| 1982 | 76 |
| 1983 | 79 |
| 1984 | 99 |
| 1985 | 78 |
| 1986 | 75 |
| 1987 | 97 |
| 1988 | 89 |
| 1989 | 116 |
| 1990 | 113 |
| 1991 | 108 |
| 1992 | 109 |
| 1993 | 106 |
| 1994 | 99 |
| 1995 | 95 |
| 1996 | 104 |
| 1997 | 102 |
| 1998 | 113 |
| 1999 | 108 |
| 2000 | 128 |
| 2001 | 107 |
| 2002 | 128 |
| 2003 | 128 |
| 2004 | 133 |
| 2005 | 139 |
| 2006 | 152 |
| 2007 | 152 |
| 2008 | 165 |
| 2009 | 177 |
| 2010 | 168 |
| 2011 | 195 |
| 2012 | 196 |
| 2013 | 239 |
| 2014 | 241 |
| 2015 | 217 |
| 2016 | 212 |
| 2017 | 234 |
| 2018 | 248 |
| 2019 | 237 |
| 2020 | 259 |
| 2021 | 305 |
| 2022 | 274 |
| 2023 | 177 |