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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1854 | 1 |
| 1863 | 1 |
| 1869 | 1 |
| 1870 | 1 |
| 1874 | 3 |
| 1876 | 1 |
| 1877 | 1 |
| 1886 | 2 |
| 1890 | 1 |
| 1891 | 1 |
| 1892 | 1 |
| 1893 | 2 |
| 1897 | 1 |
| 1904 | 1 |
| 1909 | 1 |
| 1912 | 2 |
| 1913 | 1 |
| 1914 | 1 |
| 1915 | 1 |
| 1916 | 1 |
| 1917 | 1 |
| 1925 | 1 |
| 1926 | 1 |
| 1931 | 1 |
| 1932 | 2 |
| 1933 | 1 |
| 1934 | 1 |
| 1935 | 1 |
| 1936 | 2 |
| 1937 | 1 |
| 1938 | 1 |
| 1939 | 2 |
| 1940 | 2 |
| 1941 | 3 |
| 1942 | 2 |
| 1943 | 2 |
| 1945 | 5 |
| 1946 | 22 |
| 1947 | 20 |
| 1948 | 17 |
| 1949 | 19 |
| 1950 | 28 |
| 1951 | 18 |
| 1952 | 15 |
| 1953 | 20 |
| 1954 | 20 |
| 1955 | 12 |
| 1956 | 19 |
| 1957 | 22 |
| 1958 | 18 |
| 1959 | 21 |
| 1960 | 26 |
| 1961 | 23 |
| 1962 | 23 |
| 1963 | 22 |
| 1964 | 38 |
| 1965 | 26 |
| 1966 | 30 |
| 1967 | 34 |
| 1968 | 37 |
| 1969 | 46 |
| 1970 | 34 |
| 1971 | 35 |
| 1972 | 62 |
| 1973 | 52 |
| 1974 | 66 |
| 1975 | 80 |
| 1976 | 84 |
| 1977 | 77 |
| 1978 | 68 |
| 1979 | 58 |
| 1980 | 84 |
| 1981 | 96 |
| 1982 | 94 |
| 1983 | 90 |
| 1984 | 89 |
| 1985 | 84 |
| 1986 | 87 |
| 1987 | 98 |
| 1988 | 94 |
| 1989 | 106 |
| 1990 | 103 |
| 1991 | 96 |
| 1992 | 137 |
| 1993 | 130 |
| 1994 | 117 |
| 1995 | 105 |
| 1996 | 102 |
| 1997 | 103 |
| 1998 | 133 |
| 1999 | 123 |
| 2000 | 174 |
| 2001 | 177 |
| 2002 | 147 |
| 2003 | 185 |
| 2004 | 173 |
| 2005 | 212 |
| 2006 | 191 |
| 2007 | 221 |
| 2008 | 263 |
| 2009 | 263 |
| 2010 | 270 |
| 2011 | 268 |
| 2012 | 345 |
| 2013 | 344 |
| 2014 | 343 |
| 2015 | 410 |
| 2016 | 364 |
| 2017 | 395 |
| 2018 | 359 |
| 2019 | 388 |
| 2020 | 479 |
| 2021 | 455 |
| 2022 | 446 |
| 2023 | 455 |
| 2024 | 452 |
| 2025 | 17 |