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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1842 | 1 |
| 1852 | 1 |
| 1880 | 1 |
| 1896 | 1 |
| 1897 | 1 |
| 1902 | 1 |
| 1903 | 1 |
| 1908 | 1 |
| 1913 | 1 |
| 1915 | 1 |
| 1917 | 1 |
| 1921 | 1 |
| 1922 | 1 |
| 1923 | 1 |
| 1924 | 1 |
| 1925 | 1 |
| 1926 | 1 |
| 1927 | 1 |
| 1931 | 1 |
| 1932 | 1 |
| 1933 | 1 |
| 1934 | 4 |
| 1935 | 2 |
| 1936 | 1 |
| 1937 | 3 |
| 1938 | 2 |
| 1939 | 2 |
| 1940 | 3 |
| 1941 | 2 |
| 1942 | 1 |
| 1943 | 1 |
| 1944 | 1 |
| 1945 | 1 |
| 1946 | 9 |
| 1947 | 10 |
| 1948 | 8 |
| 1949 | 7 |
| 1950 | 6 |
| 1951 | 8 |
| 1952 | 11 |
| 1953 | 12 |
| 1954 | 8 |
| 1955 | 6 |
| 1956 | 9 |
| 1957 | 7 |
| 1958 | 14 |
| 1959 | 8 |
| 1960 | 17 |
| 1961 | 18 |
| 1962 | 1 |
| 1963 | 6 |
| 1964 | 9 |
| 1965 | 7 |
| 1966 | 12 |
| 1967 | 14 |
| 1968 | 11 |
| 1969 | 21 |
| 1970 | 12 |
| 1971 | 19 |
| 1972 | 13 |
| 1973 | 12 |
| 1974 | 20 |
| 1975 | 12 |
| 1976 | 16 |
| 1977 | 18 |
| 1978 | 17 |
| 1979 | 16 |
| 1980 | 11 |
| 1981 | 19 |
| 1982 | 24 |
| 1983 | 18 |
| 1984 | 17 |
| 1985 | 25 |
| 1986 | 28 |
| 1987 | 26 |
| 1988 | 27 |
| 1989 | 31 |
| 1990 | 29 |
| 1991 | 31 |
| 1992 | 31 |
| 1993 | 48 |
| 1994 | 41 |
| 1995 | 51 |
| 1996 | 60 |
| 1997 | 74 |
| 1998 | 60 |
| 1999 | 59 |
| 2000 | 65 |
| 2001 | 70 |
| 2002 | 72 |
| 2003 | 81 |
| 2004 | 65 |
| 2005 | 85 |
| 2006 | 124 |
| 2007 | 115 |
| 2008 | 119 |
| 2009 | 112 |
| 2010 | 154 |
| 2011 | 130 |
| 2012 | 165 |
| 2013 | 174 |
| 2014 | 169 |
| 2015 | 166 |
| 2016 | 192 |
| 2017 | 189 |
| 2018 | 184 |
| 2019 | 187 |
| 2020 | 218 |
| 2021 | 260 |
| 2022 | 239 |
| 2023 | 192 |