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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1829 | 1 |
| 1844 | 1 |
| 1855 | 1 |
| 1856 | 2 |
| 1857 | 1 |
| 1860 | 1 |
| 1866 | 1 |
| 1870 | 3 |
| 1871 | 3 |
| 1872 | 10 |
| 1875 | 8 |
| 1876 | 1 |
| 1877 | 1 |
| 1878 | 9 |
| 1880 | 1 |
| 1882 | 1 |
| 1886 | 1 |
| 1888 | 1 |
| 1896 | 2 |
| 1898 | 1 |
| 1899 | 1 |
| 1900 | 2 |
| 1901 | 1 |
| 1904 | 1 |
| 1906 | 2 |
| 1909 | 3 |
| 1911 | 4 |
| 1912 | 2 |
| 1913 | 4 |
| 1914 | 2 |
| 1915 | 1 |
| 1921 | 2 |
| 1922 | 3 |
| 1924 | 2 |
| 1925 | 1 |
| 1926 | 2 |
| 1927 | 3 |
| 1928 | 3 |
| 1929 | 5 |
| 1930 | 4 |
| 1931 | 2 |
| 1932 | 2 |
| 1933 | 4 |
| 1934 | 2 |
| 1935 | 5 |
| 1936 | 2 |
| 1937 | 4 |
| 1938 | 2 |
| 1939 | 3 |
| 1940 | 3 |
| 1942 | 4 |
| 1943 | 1 |
| 1944 | 5 |
| 1945 | 1 |
| 1946 | 13 |
| 1947 | 11 |
| 1948 | 11 |
| 1949 | 16 |
| 1950 | 12 |
| 1951 | 16 |
| 1952 | 15 |
| 1953 | 7 |
| 1954 | 14 |
| 1955 | 11 |
| 1956 | 15 |
| 1957 | 16 |
| 1958 | 11 |
| 1959 | 13 |
| 1960 | 25 |
| 1961 | 19 |
| 1962 | 15 |
| 1963 | 24 |
| 1964 | 22 |
| 1965 | 50 |
| 1966 | 27 |
| 1967 | 32 |
| 1968 | 43 |
| 1969 | 43 |
| 1970 | 57 |
| 1971 | 40 |
| 1972 | 45 |
| 1973 | 56 |
| 1974 | 46 |
| 1975 | 51 |
| 1976 | 44 |
| 1977 | 58 |
| 1978 | 86 |
| 1979 | 92 |
| 1980 | 95 |
| 1981 | 95 |
| 1982 | 86 |
| 1983 | 110 |
| 1984 | 110 |
| 1985 | 89 |
| 1986 | 126 |
| 1987 | 144 |
| 1988 | 125 |
| 1989 | 124 |
| 1990 | 122 |
| 1991 | 146 |
| 1992 | 130 |
| 1993 | 126 |
| 1994 | 133 |
| 1995 | 123 |
| 1996 | 123 |
| 1997 | 130 |
| 1998 | 144 |
| 1999 | 160 |
| 2000 | 162 |
| 2001 | 200 |
| 2002 | 176 |
| 2003 | 190 |
| 2004 | 202 |
| 2005 | 219 |
| 2006 | 197 |
| 2007 | 257 |
| 2008 | 259 |
| 2009 | 266 |
| 2010 | 242 |
| 2011 | 276 |
| 2012 | 347 |
| 2013 | 355 |
| 2014 | 387 |
| 2015 | 408 |
| 2016 | 386 |
| 2017 | 396 |
| 2018 | 384 |
| 2019 | 413 |
| 2020 | 493 |
| 2021 | 511 |
| 2022 | 459 |
| 2023 | 438 |
| 2024 | 379 |