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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1841 | 1 |
| 1852 | 1 |
| 1855 | 1 |
| 1865 | 1 |
| 1867 | 1 |
| 1868 | 1 |
| 1869 | 1 |
| 1914 | 1 |
| 1915 | 1 |
| 1920 | 1 |
| 1921 | 2 |
| 1922 | 1 |
| 1924 | 3 |
| 1925 | 1 |
| 1927 | 2 |
| 1928 | 3 |
| 1931 | 3 |
| 1937 | 1 |
| 1939 | 2 |
| 1941 | 1 |
| 1945 | 2 |
| 1946 | 4 |
| 1947 | 3 |
| 1948 | 7 |
| 1949 | 7 |
| 1950 | 6 |
| 1951 | 5 |
| 1952 | 3 |
| 1953 | 2 |
| 1954 | 1 |
| 1955 | 2 |
| 1956 | 1 |
| 1957 | 1 |
| 1958 | 5 |
| 1959 | 2 |
| 1960 | 1 |
| 1961 | 1 |
| 1962 | 2 |
| 1963 | 9 |
| 1964 | 3 |
| 1965 | 9 |
| 1966 | 4 |
| 1967 | 9 |
| 1968 | 5 |
| 1969 | 7 |
| 1970 | 11 |
| 1971 | 13 |
| 1972 | 6 |
| 1973 | 13 |
| 1974 | 23 |
| 1975 | 20 |
| 1976 | 21 |
| 1977 | 20 |
| 1978 | 26 |
| 1979 | 32 |
| 1980 | 36 |
| 1981 | 40 |
| 1982 | 64 |
| 1983 | 54 |
| 1984 | 81 |
| 1985 | 77 |
| 1986 | 88 |
| 1987 | 94 |
| 1988 | 75 |
| 1989 | 123 |
| 1990 | 101 |
| 1991 | 98 |
| 1992 | 123 |
| 1993 | 123 |
| 1994 | 141 |
| 1995 | 126 |
| 1996 | 191 |
| 1997 | 158 |
| 1998 | 178 |
| 1999 | 190 |
| 2000 | 182 |
| 2001 | 176 |
| 2002 | 206 |
| 2003 | 188 |
| 2004 | 234 |
| 2005 | 258 |
| 2006 | 262 |
| 2007 | 293 |
| 2008 | 339 |
| 2009 | 354 |
| 2010 | 384 |
| 2011 | 445 |
| 2012 | 427 |
| 2013 | 465 |
| 2014 | 470 |
| 2015 | 490 |
| 2016 | 554 |
| 2017 | 564 |
| 2018 | 555 |
| 2019 | 526 |
| 2020 | 606 |
| 2021 | 614 |
| 2022 | 601 |
| 2023 | 579 |
| 2024 | 540 |
| 2025 | 8 |