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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1814 | 1 |
| 1843 | 1 |
| 1856 | 1 |
| 1880 | 2 |
| 1882 | 2 |
| 1890 | 1 |
| 1891 | 1 |
| 1894 | 1 |
| 1897 | 2 |
| 1899 | 2 |
| 1900 | 2 |
| 1901 | 1 |
| 1902 | 1 |
| 1907 | 5 |
| 1908 | 1 |
| 1909 | 2 |
| 1911 | 1 |
| 1913 | 4 |
| 1919 | 2 |
| 1922 | 1 |
| 1924 | 5 |
| 1925 | 1 |
| 1926 | 1 |
| 1927 | 1 |
| 1935 | 2 |
| 1936 | 1 |
| 1938 | 1 |
| 1939 | 1 |
| 1940 | 1 |
| 1944 | 1 |
| 1945 | 4 |
| 1946 | 8 |
| 1947 | 4 |
| 1948 | 4 |
| 1949 | 7 |
| 1950 | 3 |
| 1951 | 10 |
| 1952 | 8 |
| 1953 | 18 |
| 1954 | 19 |
| 1955 | 10 |
| 1956 | 10 |
| 1957 | 12 |
| 1958 | 15 |
| 1959 | 13 |
| 1960 | 11 |
| 1961 | 5 |
| 1962 | 9 |
| 1963 | 15 |
| 1964 | 14 |
| 1965 | 28 |
| 1966 | 18 |
| 1967 | 15 |
| 1968 | 15 |
| 1969 | 28 |
| 1970 | 20 |
| 1971 | 13 |
| 1972 | 29 |
| 1973 | 26 |
| 1974 | 21 |
| 1975 | 14 |
| 1976 | 22 |
| 1977 | 17 |
| 1978 | 23 |
| 1979 | 21 |
| 1980 | 24 |
| 1981 | 39 |
| 1982 | 28 |
| 1983 | 24 |
| 1984 | 27 |
| 1985 | 46 |
| 1986 | 39 |
| 1987 | 39 |
| 1988 | 41 |
| 1989 | 46 |
| 1990 | 56 |
| 1991 | 51 |
| 1992 | 57 |
| 1993 | 55 |
| 1994 | 64 |
| 1995 | 57 |
| 1996 | 70 |
| 1997 | 53 |
| 1998 | 65 |
| 1999 | 58 |
| 2000 | 73 |
| 2001 | 82 |
| 2002 | 94 |
| 2003 | 76 |
| 2004 | 94 |
| 2005 | 89 |
| 2006 | 80 |
| 2007 | 89 |
| 2008 | 98 |
| 2009 | 95 |
| 2010 | 104 |
| 2011 | 112 |
| 2012 | 138 |
| 2013 | 156 |
| 2014 | 154 |
| 2015 | 116 |
| 2016 | 131 |
| 2017 | 135 |
| 2018 | 153 |
| 2019 | 166 |
| 2020 | 199 |
| 2021 | 206 |
| 2022 | 199 |
| 2023 | 27 |