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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1807 | 1 |
| 1872 | 3 |
| 1898 | 1 |
| 1908 | 1 |
| 1915 | 1 |
| 1918 | 1 |
| 1921 | 1 |
| 1923 | 1 |
| 1929 | 1 |
| 1935 | 1 |
| 1937 | 2 |
| 1939 | 1 |
| 1941 | 1 |
| 1943 | 2 |
| 1945 | 2 |
| 1946 | 6 |
| 1947 | 6 |
| 1948 | 11 |
| 1949 | 7 |
| 1950 | 6 |
| 1951 | 8 |
| 1952 | 5 |
| 1953 | 12 |
| 1954 | 12 |
| 1955 | 11 |
| 1956 | 8 |
| 1957 | 16 |
| 1958 | 7 |
| 1959 | 14 |
| 1960 | 8 |
| 1961 | 10 |
| 1962 | 6 |
| 1963 | 8 |
| 1964 | 20 |
| 1965 | 19 |
| 1966 | 40 |
| 1967 | 34 |
| 1968 | 39 |
| 1969 | 34 |
| 1970 | 31 |
| 1971 | 37 |
| 1972 | 38 |
| 1973 | 42 |
| 1974 | 40 |
| 1975 | 43 |
| 1976 | 47 |
| 1977 | 43 |
| 1978 | 56 |
| 1979 | 60 |
| 1980 | 57 |
| 1981 | 65 |
| 1982 | 63 |
| 1983 | 109 |
| 1984 | 132 |
| 1985 | 79 |
| 1986 | 72 |
| 1987 | 65 |
| 1988 | 69 |
| 1989 | 73 |
| 1990 | 76 |
| 1991 | 68 |
| 1992 | 70 |
| 1993 | 80 |
| 1994 | 83 |
| 1995 | 95 |
| 1996 | 93 |
| 1997 | 81 |
| 1998 | 98 |
| 1999 | 93 |
| 2000 | 98 |
| 2001 | 100 |
| 2002 | 82 |
| 2003 | 90 |
| 2004 | 98 |
| 2005 | 108 |
| 2006 | 103 |
| 2007 | 128 |
| 2008 | 163 |
| 2009 | 132 |
| 2010 | 146 |
| 2011 | 160 |
| 2012 | 181 |
| 2013 | 182 |
| 2014 | 173 |
| 2015 | 178 |
| 2016 | 180 |
| 2017 | 164 |
| 2018 | 150 |
| 2019 | 163 |
| 2020 | 200 |
| 2021 | 161 |
| 2022 | 164 |
| 2023 | 66 |