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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1821 | 2 |
| 1840 | 1 |
| 1845 | 2 |
| 1847 | 1 |
| 1855 | 2 |
| 1868 | 1 |
| 1879 | 1 |
| 1884 | 3 |
| 1886 | 1 |
| 1887 | 1 |
| 1888 | 1 |
| 1890 | 3 |
| 1891 | 3 |
| 1892 | 2 |
| 1893 | 4 |
| 1894 | 2 |
| 1895 | 1 |
| 1896 | 1 |
| 1897 | 3 |
| 1898 | 2 |
| 1899 | 3 |
| 1901 | 2 |
| 1902 | 2 |
| 1904 | 1 |
| 1905 | 1 |
| 1906 | 2 |
| 1907 | 1 |
| 1908 | 4 |
| 1909 | 2 |
| 1910 | 3 |
| 1911 | 5 |
| 1912 | 6 |
| 1913 | 3 |
| 1915 | 2 |
| 1916 | 5 |
| 1917 | 3 |
| 1918 | 1 |
| 1919 | 1 |
| 1920 | 1 |
| 1921 | 5 |
| 1922 | 7 |
| 1923 | 4 |
| 1924 | 9 |
| 1925 | 9 |
| 1926 | 5 |
| 1927 | 4 |
| 1928 | 8 |
| 1929 | 2 |
| 1930 | 2 |
| 1931 | 3 |
| 1932 | 6 |
| 1933 | 6 |
| 1934 | 3 |
| 1935 | 4 |
| 1936 | 4 |
| 1937 | 5 |
| 1938 | 2 |
| 1939 | 4 |
| 1940 | 2 |
| 1941 | 1 |
| 1942 | 5 |
| 1943 | 8 |
| 1944 | 3 |
| 1945 | 6 |
| 1946 | 19 |
| 1947 | 25 |
| 1948 | 33 |
| 1949 | 26 |
| 1950 | 28 |
| 1951 | 23 |
| 1952 | 22 |
| 1953 | 35 |
| 1954 | 43 |
| 1955 | 35 |
| 1956 | 26 |
| 1957 | 37 |
| 1958 | 27 |
| 1959 | 32 |
| 1960 | 33 |
| 1961 | 37 |
| 1962 | 34 |
| 1963 | 48 |
| 1964 | 69 |
| 1965 | 67 |
| 1966 | 64 |
| 1967 | 78 |
| 1968 | 67 |
| 1969 | 99 |
| 1970 | 102 |
| 1971 | 95 |
| 1972 | 100 |
| 1973 | 113 |
| 1974 | 100 |
| 1975 | 103 |
| 1976 | 111 |
| 1977 | 101 |
| 1978 | 120 |
| 1979 | 127 |
| 1980 | 113 |
| 1981 | 142 |
| 1982 | 132 |
| 1983 | 132 |
| 1984 | 135 |
| 1985 | 159 |
| 1986 | 167 |
| 1987 | 183 |
| 1988 | 196 |
| 1989 | 196 |
| 1990 | 192 |
| 1991 | 194 |
| 1992 | 202 |
| 1993 | 228 |
| 1994 | 222 |
| 1995 | 213 |
| 1996 | 198 |
| 1997 | 240 |
| 1998 | 258 |
| 1999 | 255 |
| 2000 | 261 |
| 2001 | 262 |
| 2002 | 277 |
| 2003 | 295 |
| 2004 | 298 |
| 2005 | 336 |
| 2006 | 369 |
| 2007 | 391 |
| 2008 | 434 |
| 2009 | 413 |
| 2010 | 435 |
| 2011 | 511 |
| 2012 | 572 |
| 2013 | 568 |
| 2014 | 572 |
| 2015 | 637 |
| 2016 | 609 |
| 2017 | 663 |
| 2018 | 750 |
| 2019 | 786 |
| 2020 | 970 |
| 2021 | 1022 |
| 2022 | 970 |
| 2023 | 872 |
| 2024 | 889 |
| 2025 | 743 |