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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1816 | 1 |
| 1822 | 1 |
| 1869 | 1 |
| 1870 | 1 |
| 1871 | 1 |
| 1872 | 4 |
| 1873 | 2 |
| 1874 | 2 |
| 1876 | 1 |
| 1878 | 1 |
| 1879 | 3 |
| 1880 | 1 |
| 1882 | 1 |
| 1883 | 1 |
| 1884 | 5 |
| 1885 | 4 |
| 1886 | 1 |
| 1888 | 1 |
| 1889 | 2 |
| 1892 | 3 |
| 1893 | 1 |
| 1894 | 1 |
| 1904 | 1 |
| 1910 | 2 |
| 1911 | 2 |
| 1913 | 1 |
| 1915 | 1 |
| 1922 | 1 |
| 1923 | 1 |
| 1924 | 1 |
| 1925 | 1 |
| 1926 | 1 |
| 1927 | 2 |
| 1928 | 2 |
| 1929 | 1 |
| 1930 | 1 |
| 1931 | 3 |
| 1932 | 3 |
| 1933 | 2 |
| 1934 | 4 |
| 1935 | 7 |
| 1936 | 2 |
| 1937 | 2 |
| 1938 | 1 |
| 1939 | 5 |
| 1940 | 1 |
| 1941 | 3 |
| 1942 | 2 |
| 1943 | 1 |
| 1944 | 2 |
| 1945 | 7 |
| 1946 | 21 |
| 1947 | 29 |
| 1948 | 24 |
| 1949 | 16 |
| 1950 | 27 |
| 1951 | 31 |
| 1952 | 33 |
| 1953 | 25 |
| 1954 | 41 |
| 1955 | 38 |
| 1956 | 32 |
| 1957 | 32 |
| 1958 | 29 |
| 1959 | 30 |
| 1960 | 35 |
| 1961 | 35 |
| 1962 | 34 |
| 1963 | 37 |
| 1964 | 63 |
| 1965 | 56 |
| 1966 | 67 |
| 1967 | 76 |
| 1968 | 101 |
| 1969 | 109 |
| 1970 | 139 |
| 1971 | 131 |
| 1972 | 144 |
| 1973 | 120 |
| 1974 | 124 |
| 1975 | 169 |
| 1976 | 157 |
| 1977 | 189 |
| 1978 | 205 |
| 1979 | 210 |
| 1980 | 235 |
| 1981 | 207 |
| 1982 | 248 |
| 1983 | 234 |
| 1984 | 221 |
| 1985 | 289 |
| 1986 | 273 |
| 1987 | 368 |
| 1988 | 357 |
| 1989 | 351 |
| 1990 | 398 |
| 1991 | 453 |
| 1992 | 408 |
| 1993 | 446 |
| 1994 | 512 |
| 1995 | 529 |
| 1996 | 533 |
| 1997 | 566 |
| 1998 | 547 |
| 1999 | 538 |
| 2000 | 613 |
| 2001 | 672 |
| 2002 | 673 |
| 2003 | 728 |
| 2004 | 718 |
| 2005 | 769 |
| 2006 | 860 |
| 2007 | 862 |
| 2008 | 980 |
| 2009 | 981 |
| 2010 | 1028 |
| 2011 | 1088 |
| 2012 | 1159 |
| 2013 | 1322 |
| 2014 | 1351 |
| 2015 | 1396 |
| 2016 | 1470 |
| 2017 | 1540 |
| 2018 | 1614 |
| 2019 | 1715 |
| 2020 | 1828 |
| 2021 | 1893 |
| 2022 | 1740 |
| 2023 | 1635 |
| 2024 | 857 |