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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1822 | 1 |
| 1825 | 1 |
| 1829 | 1 |
| 1837 | 1 |
| 1882 | 1 |
| 1883 | 1 |
| 1884 | 1 |
| 1887 | 2 |
| 1888 | 1 |
| 1889 | 2 |
| 1890 | 2 |
| 1893 | 1 |
| 1897 | 1 |
| 1898 | 1 |
| 1903 | 1 |
| 1904 | 1 |
| 1905 | 1 |
| 1907 | 1 |
| 1908 | 1 |
| 1909 | 1 |
| 1915 | 1 |
| 1916 | 1 |
| 1918 | 2 |
| 1919 | 2 |
| 1920 | 1 |
| 1921 | 1 |
| 1922 | 1 |
| 1923 | 1 |
| 1925 | 1 |
| 1926 | 1 |
| 1928 | 2 |
| 1929 | 1 |
| 1932 | 2 |
| 1933 | 2 |
| 1934 | 1 |
| 1935 | 2 |
| 1937 | 2 |
| 1938 | 2 |
| 1939 | 5 |
| 1942 | 1 |
| 1943 | 2 |
| 1944 | 2 |
| 1946 | 7 |
| 1947 | 1 |
| 1948 | 8 |
| 1949 | 8 |
| 1950 | 8 |
| 1951 | 13 |
| 1952 | 14 |
| 1953 | 8 |
| 1954 | 17 |
| 1955 | 11 |
| 1956 | 17 |
| 1957 | 24 |
| 1958 | 12 |
| 1959 | 13 |
| 1960 | 15 |
| 1961 | 15 |
| 1962 | 15 |
| 1963 | 27 |
| 1964 | 36 |
| 1965 | 28 |
| 1966 | 39 |
| 1967 | 14 |
| 1968 | 25 |
| 1969 | 31 |
| 1970 | 47 |
| 1971 | 41 |
| 1972 | 52 |
| 1973 | 47 |
| 1974 | 46 |
| 1975 | 48 |
| 1976 | 70 |
| 1977 | 35 |
| 1978 | 64 |
| 1979 | 68 |
| 1980 | 49 |
| 1981 | 62 |
| 1982 | 74 |
| 1983 | 77 |
| 1984 | 77 |
| 1985 | 63 |
| 1986 | 80 |
| 1987 | 94 |
| 1988 | 82 |
| 1989 | 81 |
| 1990 | 76 |
| 1991 | 73 |
| 1992 | 72 |
| 1993 | 86 |
| 1994 | 81 |
| 1995 | 79 |
| 1996 | 90 |
| 1997 | 77 |
| 1998 | 66 |
| 1999 | 70 |
| 2000 | 83 |
| 2001 | 67 |
| 2002 | 67 |
| 2003 | 77 |
| 2004 | 82 |
| 2005 | 86 |
| 2006 | 69 |
| 2007 | 91 |
| 2008 | 105 |
| 2009 | 106 |
| 2010 | 107 |
| 2011 | 126 |
| 2012 | 115 |
| 2013 | 127 |
| 2014 | 136 |
| 2015 | 132 |
| 2016 | 130 |
| 2017 | 139 |
| 2018 | 147 |
| 2019 | 116 |
| 2020 | 128 |
| 2021 | 136 |
| 2022 | 101 |
| 2023 | 101 |