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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1804 | 1 |
| 1839 | 1 |
| 1844 | 1 |
| 1848 | 1 |
| 1850 | 1 |
| 1859 | 1 |
| 1869 | 1 |
| 1881 | 1 |
| 1887 | 2 |
| 1889 | 2 |
| 1893 | 1 |
| 1904 | 1 |
| 1909 | 1 |
| 1912 | 2 |
| 1915 | 1 |
| 1920 | 1 |
| 1921 | 1 |
| 1925 | 1 |
| 1928 | 1 |
| 1930 | 1 |
| 1937 | 1 |
| 1945 | 3 |
| 1946 | 10 |
| 1947 | 8 |
| 1948 | 8 |
| 1949 | 5 |
| 1950 | 10 |
| 1951 | 14 |
| 1952 | 15 |
| 1953 | 14 |
| 1954 | 25 |
| 1955 | 22 |
| 1956 | 16 |
| 1957 | 11 |
| 1958 | 13 |
| 1959 | 12 |
| 1960 | 13 |
| 1961 | 22 |
| 1962 | 14 |
| 1963 | 24 |
| 1964 | 28 |
| 1965 | 29 |
| 1966 | 26 |
| 1967 | 17 |
| 1968 | 17 |
| 1969 | 33 |
| 1970 | 30 |
| 1971 | 46 |
| 1972 | 44 |
| 1973 | 62 |
| 1974 | 52 |
| 1975 | 82 |
| 1976 | 92 |
| 1977 | 100 |
| 1978 | 124 |
| 1979 | 117 |
| 1980 | 92 |
| 1981 | 80 |
| 1982 | 100 |
| 1983 | 122 |
| 1984 | 105 |
| 1985 | 119 |
| 1986 | 112 |
| 1987 | 124 |
| 1988 | 156 |
| 1989 | 124 |
| 1990 | 167 |
| 1991 | 167 |
| 1992 | 202 |
| 1993 | 227 |
| 1994 | 215 |
| 1995 | 251 |
| 1996 | 230 |
| 1997 | 254 |
| 1998 | 303 |
| 1999 | 312 |
| 2000 | 302 |
| 2001 | 310 |
| 2002 | 372 |
| 2003 | 264 |
| 2004 | 294 |
| 2005 | 376 |
| 2006 | 344 |
| 2007 | 367 |
| 2008 | 465 |
| 2009 | 396 |
| 2010 | 448 |
| 2011 | 469 |
| 2012 | 463 |
| 2013 | 535 |
| 2014 | 583 |
| 2015 | 624 |
| 2016 | 654 |
| 2017 | 740 |
| 2018 | 767 |
| 2019 | 818 |
| 2020 | 930 |
| 2021 | 1120 |
| 2022 | 1166 |
| 2023 | 1084 |
| 2024 | 1110 |
| 2025 | 799 |