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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1807 | 1 |
| 1815 | 1 |
| 1816 | 2 |
| 1817 | 3 |
| 1819 | 2 |
| 1820 | 2 |
| 1823 | 1 |
| 1827 | 2 |
| 1829 | 2 |
| 1831 | 2 |
| 1832 | 1 |
| 1839 | 1 |
| 1840 | 3 |
| 1841 | 1 |
| 1844 | 1 |
| 1848 | 1 |
| 1854 | 1 |
| 1857 | 1 |
| 1911 | 2 |
| 1925 | 1 |
| 1926 | 1 |
| 1930 | 1 |
| 1931 | 1 |
| 1935 | 1 |
| 1936 | 1 |
| 1937 | 1 |
| 1939 | 2 |
| 1940 | 1 |
| 1943 | 1 |
| 1946 | 5 |
| 1947 | 2 |
| 1948 | 3 |
| 1949 | 1 |
| 1950 | 5 |
| 1951 | 5 |
| 1952 | 2 |
| 1953 | 4 |
| 1954 | 4 |
| 1955 | 3 |
| 1956 | 1 |
| 1957 | 3 |
| 1958 | 1 |
| 1959 | 6 |
| 1960 | 4 |
| 1961 | 15 |
| 1962 | 10 |
| 1963 | 8 |
| 1964 | 5 |
| 1965 | 12 |
| 1966 | 7 |
| 1967 | 10 |
| 1968 | 11 |
| 1969 | 14 |
| 1970 | 17 |
| 1971 | 13 |
| 1972 | 25 |
| 1973 | 25 |
| 1974 | 27 |
| 1975 | 22 |
| 1976 | 32 |
| 1977 | 27 |
| 1978 | 30 |
| 1979 | 37 |
| 1980 | 33 |
| 1981 | 26 |
| 1982 | 42 |
| 1983 | 40 |
| 1984 | 34 |
| 1985 | 43 |
| 1986 | 41 |
| 1987 | 44 |
| 1988 | 40 |
| 1989 | 37 |
| 1990 | 51 |
| 1991 | 49 |
| 1992 | 63 |
| 1993 | 60 |
| 1994 | 55 |
| 1995 | 66 |
| 1996 | 58 |
| 1997 | 58 |
| 1998 | 63 |
| 1999 | 70 |
| 2000 | 73 |
| 2001 | 80 |
| 2002 | 80 |
| 2003 | 77 |
| 2004 | 109 |
| 2005 | 121 |
| 2006 | 105 |
| 2007 | 119 |
| 2008 | 130 |
| 2009 | 142 |
| 2010 | 175 |
| 2011 | 196 |
| 2012 | 204 |
| 2013 | 229 |
| 2014 | 260 |
| 2015 | 298 |
| 2016 | 335 |
| 2017 | 335 |
| 2018 | 376 |
| 2019 | 369 |
| 2020 | 414 |
| 2021 | 477 |
| 2022 | 466 |
| 2023 | 135 |