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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1843 | 2 |
| 1849 | 1 |
| 1868 | 1 |
| 1872 | 1 |
| 1876 | 1 |
| 1878 | 1 |
| 1889 | 1 |
| 1901 | 3 |
| 1907 | 1 |
| 1908 | 3 |
| 1909 | 2 |
| 1910 | 3 |
| 1911 | 2 |
| 1912 | 3 |
| 1913 | 1 |
| 1914 | 2 |
| 1915 | 1 |
| 1917 | 2 |
| 1920 | 7 |
| 1921 | 2 |
| 1922 | 1 |
| 1930 | 1 |
| 1936 | 1 |
| 1937 | 1 |
| 1942 | 1 |
| 1944 | 1 |
| 1948 | 1 |
| 1949 | 2 |
| 1950 | 1 |
| 1952 | 3 |
| 1953 | 2 |
| 1954 | 2 |
| 1955 | 1 |
| 1956 | 2 |
| 1957 | 2 |
| 1958 | 4 |
| 1959 | 3 |
| 1960 | 1 |
| 1961 | 4 |
| 1962 | 3 |
| 1963 | 4 |
| 1964 | 2 |
| 1965 | 5 |
| 1966 | 4 |
| 1967 | 6 |
| 1968 | 13 |
| 1969 | 14 |
| 1970 | 13 |
| 1971 | 10 |
| 1972 | 12 |
| 1973 | 7 |
| 1974 | 23 |
| 1975 | 8 |
| 1976 | 14 |
| 1977 | 15 |
| 1978 | 18 |
| 1979 | 26 |
| 1980 | 22 |
| 1981 | 27 |
| 1982 | 15 |
| 1983 | 18 |
| 1984 | 19 |
| 1985 | 21 |
| 1986 | 19 |
| 1987 | 27 |
| 1988 | 34 |
| 1989 | 41 |
| 1990 | 45 |
| 1991 | 40 |
| 1992 | 38 |
| 1993 | 40 |
| 1994 | 40 |
| 1995 | 38 |
| 1996 | 46 |
| 1997 | 30 |
| 1998 | 37 |
| 1999 | 21 |
| 2000 | 38 |
| 2001 | 47 |
| 2002 | 41 |
| 2003 | 53 |
| 2004 | 51 |
| 2005 | 79 |
| 2006 | 67 |
| 2007 | 85 |
| 2008 | 101 |
| 2009 | 110 |
| 2010 | 87 |
| 2011 | 79 |
| 2012 | 111 |
| 2013 | 113 |
| 2014 | 125 |
| 2015 | 123 |
| 2016 | 119 |
| 2017 | 112 |
| 2018 | 135 |
| 2019 | 108 |
| 2020 | 99 |
| 2021 | 74 |
| 2022 | 73 |
| 2023 | 61 |
| 2024 | 91 |