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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1866 | 1 |
| 1867 | 1 |
| 1869 | 5 |
| 1870 | 6 |
| 1871 | 2 |
| 1872 | 4 |
| 1873 | 2 |
| 1875 | 1 |
| 1876 | 3 |
| 1879 | 1 |
| 1880 | 3 |
| 1881 | 4 |
| 1882 | 1 |
| 1883 | 3 |
| 1884 | 1 |
| 1885 | 1 |
| 1888 | 1 |
| 1889 | 2 |
| 1890 | 2 |
| 1893 | 1 |
| 1901 | 2 |
| 1902 | 1 |
| 1903 | 1 |
| 1925 | 1 |
| 1927 | 1 |
| 1928 | 2 |
| 1943 | 1 |
| 1945 | 2 |
| 1946 | 6 |
| 1947 | 2 |
| 1948 | 6 |
| 1949 | 4 |
| 1950 | 5 |
| 1951 | 7 |
| 1952 | 10 |
| 1953 | 8 |
| 1954 | 15 |
| 1955 | 17 |
| 1956 | 9 |
| 1957 | 19 |
| 1958 | 14 |
| 1959 | 15 |
| 1960 | 25 |
| 1961 | 21 |
| 1962 | 23 |
| 1963 | 28 |
| 1964 | 32 |
| 1965 | 21 |
| 1966 | 13 |
| 1967 | 15 |
| 1968 | 12 |
| 1969 | 10 |
| 1970 | 15 |
| 1971 | 24 |
| 1972 | 33 |
| 1973 | 36 |
| 1974 | 31 |
| 1975 | 33 |
| 1976 | 28 |
| 1977 | 42 |
| 1978 | 36 |
| 1979 | 57 |
| 1980 | 47 |
| 1981 | 43 |
| 1982 | 55 |
| 1983 | 44 |
| 1984 | 56 |
| 1985 | 72 |
| 1986 | 77 |
| 1987 | 73 |
| 1988 | 53 |
| 1989 | 68 |
| 1990 | 78 |
| 1991 | 94 |
| 1992 | 108 |
| 1993 | 133 |
| 1994 | 133 |
| 1995 | 86 |
| 1996 | 97 |
| 1997 | 93 |
| 1998 | 89 |
| 1999 | 101 |
| 2000 | 97 |
| 2001 | 119 |
| 2002 | 121 |
| 2003 | 114 |
| 2004 | 133 |
| 2005 | 138 |
| 2006 | 196 |
| 2007 | 189 |
| 2008 | 199 |
| 2009 | 198 |
| 2010 | 240 |
| 2011 | 260 |
| 2012 | 263 |
| 2013 | 299 |
| 2014 | 289 |
| 2015 | 264 |
| 2016 | 299 |
| 2017 | 289 |
| 2018 | 315 |
| 2019 | 302 |
| 2020 | 316 |
| 2021 | 390 |
| 2022 | 382 |
| 2023 | 344 |