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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1846 | 1 |
| 1847 | 1 |
| 1850 | 1 |
| 1853 | 1 |
| 1855 | 1 |
| 1856 | 1 |
| 1859 | 2 |
| 1864 | 1 |
| 1865 | 8 |
| 1866 | 9 |
| 1867 | 5 |
| 1868 | 11 |
| 1869 | 1 |
| 1870 | 13 |
| 1871 | 8 |
| 1872 | 7 |
| 1873 | 18 |
| 1874 | 8 |
| 1875 | 6 |
| 1876 | 6 |
| 1877 | 7 |
| 1878 | 5 |
| 1879 | 2 |
| 1880 | 1 |
| 1881 | 2 |
| 1882 | 1 |
| 1883 | 4 |
| 1884 | 2 |
| 1886 | 1 |
| 1887 | 1 |
| 1888 | 2 |
| 1889 | 1 |
| 1891 | 4 |
| 1892 | 1 |
| 1893 | 5 |
| 1894 | 3 |
| 1895 | 1 |
| 1896 | 3 |
| 1899 | 3 |
| 1900 | 3 |
| 1905 | 2 |
| 1909 | 1 |
| 1911 | 2 |
| 1914 | 1 |
| 1927 | 1 |
| 1928 | 1 |
| 1932 | 1 |
| 1933 | 1 |
| 1934 | 2 |
| 1935 | 1 |
| 1936 | 1 |
| 1943 | 2 |
| 1945 | 1 |
| 1946 | 5 |
| 1947 | 3 |
| 1948 | 5 |
| 1949 | 4 |
| 1950 | 10 |
| 1951 | 5 |
| 1952 | 13 |
| 1953 | 9 |
| 1954 | 8 |
| 1955 | 7 |
| 1956 | 8 |
| 1957 | 19 |
| 1958 | 11 |
| 1959 | 6 |
| 1960 | 11 |
| 1961 | 19 |
| 1962 | 10 |
| 1963 | 17 |
| 1964 | 17 |
| 1965 | 15 |
| 1966 | 26 |
| 1967 | 16 |
| 1968 | 23 |
| 1969 | 27 |
| 1970 | 39 |
| 1971 | 46 |
| 1972 | 41 |
| 1973 | 37 |
| 1974 | 43 |
| 1975 | 55 |
| 1976 | 48 |
| 1977 | 65 |
| 1978 | 51 |
| 1979 | 56 |
| 1980 | 66 |
| 1981 | 85 |
| 1982 | 65 |
| 1983 | 86 |
| 1984 | 68 |
| 1985 | 82 |
| 1986 | 107 |
| 1987 | 116 |
| 1988 | 116 |
| 1989 | 120 |
| 1990 | 112 |
| 1991 | 94 |
| 1992 | 114 |
| 1993 | 118 |
| 1994 | 129 |
| 1995 | 134 |
| 1996 | 101 |
| 1997 | 127 |
| 1998 | 123 |
| 1999 | 118 |
| 2000 | 121 |
| 2001 | 129 |
| 2002 | 139 |
| 2003 | 105 |
| 2004 | 130 |
| 2005 | 136 |
| 2006 | 116 |
| 2007 | 144 |
| 2008 | 153 |
| 2009 | 151 |
| 2010 | 154 |
| 2011 | 162 |
| 2012 | 146 |
| 2013 | 152 |
| 2014 | 149 |
| 2015 | 165 |
| 2016 | 157 |
| 2017 | 175 |
| 2018 | 168 |
| 2019 | 142 |
| 2020 | 171 |
| 2021 | 193 |
| 2022 | 186 |
| 2023 | 86 |