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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1819 | 1 |
| 1824 | 1 |
| 1845 | 1 |
| 1847 | 3 |
| 1848 | 2 |
| 1850 | 4 |
| 1852 | 1 |
| 1855 | 1 |
| 1857 | 1 |
| 1858 | 2 |
| 1866 | 1 |
| 1872 | 1 |
| 1879 | 2 |
| 1880 | 1 |
| 1882 | 4 |
| 1883 | 3 |
| 1884 | 1 |
| 1887 | 2 |
| 1888 | 2 |
| 1889 | 2 |
| 1890 | 8 |
| 1891 | 1 |
| 1892 | 1 |
| 1896 | 1 |
| 1909 | 1 |
| 1910 | 2 |
| 1911 | 1 |
| 1912 | 1 |
| 1915 | 2 |
| 1918 | 1 |
| 1920 | 1 |
| 1921 | 2 |
| 1922 | 4 |
| 1923 | 2 |
| 1924 | 1 |
| 1925 | 1 |
| 1927 | 2 |
| 1932 | 2 |
| 1933 | 1 |
| 1934 | 2 |
| 1936 | 1 |
| 1937 | 1 |
| 1941 | 1 |
| 1942 | 1 |
| 1945 | 1 |
| 1946 | 9 |
| 1947 | 13 |
| 1948 | 8 |
| 1949 | 19 |
| 1950 | 20 |
| 1951 | 18 |
| 1952 | 20 |
| 1953 | 18 |
| 1954 | 16 |
| 1955 | 14 |
| 1956 | 19 |
| 1957 | 15 |
| 1958 | 11 |
| 1959 | 15 |
| 1960 | 17 |
| 1961 | 25 |
| 1962 | 18 |
| 1963 | 26 |
| 1964 | 27 |
| 1965 | 44 |
| 1966 | 42 |
| 1967 | 52 |
| 1968 | 55 |
| 1969 | 49 |
| 1970 | 47 |
| 1971 | 49 |
| 1972 | 60 |
| 1973 | 62 |
| 1974 | 69 |
| 1975 | 87 |
| 1976 | 111 |
| 1977 | 83 |
| 1978 | 98 |
| 1979 | 86 |
| 1980 | 87 |
| 1981 | 88 |
| 1982 | 93 |
| 1983 | 87 |
| 1984 | 90 |
| 1985 | 97 |
| 1986 | 79 |
| 1987 | 94 |
| 1988 | 102 |
| 1989 | 93 |
| 1990 | 100 |
| 1991 | 113 |
| 1992 | 114 |
| 1993 | 105 |
| 1994 | 94 |
| 1995 | 112 |
| 1996 | 105 |
| 1997 | 109 |
| 1998 | 122 |
| 1999 | 116 |
| 2000 | 161 |
| 2001 | 134 |
| 2002 | 125 |
| 2003 | 144 |
| 2004 | 158 |
| 2005 | 192 |
| 2006 | 233 |
| 2007 | 226 |
| 2008 | 227 |
| 2009 | 230 |
| 2010 | 275 |
| 2011 | 276 |
| 2012 | 327 |
| 2013 | 302 |
| 2014 | 335 |
| 2015 | 355 |
| 2016 | 409 |
| 2017 | 385 |
| 2018 | 382 |
| 2019 | 371 |
| 2020 | 384 |
| 2021 | 386 |
| 2022 | 353 |
| 2023 | 44 |