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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1815 | 1 |
| 1821 | 1 |
| 1829 | 1 |
| 1830 | 1 |
| 1832 | 1 |
| 1833 | 1 |
| 1834 | 1 |
| 1841 | 1 |
| 1842 | 2 |
| 1843 | 2 |
| 1845 | 1 |
| 1846 | 1 |
| 1849 | 1 |
| 1852 | 1 |
| 1853 | 1 |
| 1855 | 2 |
| 1856 | 1 |
| 1857 | 1 |
| 1858 | 2 |
| 1859 | 1 |
| 1860 | 2 |
| 1861 | 2 |
| 1863 | 2 |
| 1865 | 2 |
| 1868 | 1 |
| 1869 | 1 |
| 1870 | 1 |
| 1871 | 6 |
| 1872 | 1 |
| 1873 | 1 |
| 1876 | 2 |
| 1877 | 4 |
| 1878 | 2 |
| 1879 | 2 |
| 1880 | 7 |
| 1881 | 1 |
| 1882 | 2 |
| 1883 | 2 |
| 1884 | 4 |
| 1885 | 4 |
| 1886 | 1 |
| 1887 | 1 |
| 1888 | 2 |
| 1889 | 6 |
| 1890 | 9 |
| 1891 | 4 |
| 1892 | 7 |
| 1893 | 1 |
| 1894 | 3 |
| 1895 | 13 |
| 1896 | 3 |
| 1897 | 4 |
| 1899 | 1 |
| 1900 | 3 |
| 1901 | 2 |
| 1902 | 5 |
| 1904 | 2 |
| 1905 | 5 |
| 1906 | 3 |
| 1907 | 1 |
| 1908 | 3 |
| 1909 | 10 |
| 1910 | 5 |
| 1911 | 7 |
| 1912 | 8 |
| 1913 | 5 |
| 1914 | 5 |
| 1915 | 5 |
| 1916 | 6 |
| 1917 | 7 |
| 1918 | 8 |
| 1919 | 5 |
| 1920 | 5 |
| 1921 | 5 |
| 1922 | 3 |
| 1923 | 4 |
| 1924 | 1 |
| 1925 | 7 |
| 1926 | 4 |
| 1927 | 13 |
| 1928 | 7 |
| 1929 | 4 |
| 1930 | 6 |
| 1931 | 4 |
| 1932 | 6 |
| 1933 | 6 |
| 1934 | 2 |
| 1935 | 16 |
| 1936 | 10 |
| 1937 | 11 |
| 1938 | 13 |
| 1939 | 11 |
| 1940 | 9 |
| 1941 | 10 |
| 1942 | 8 |
| 1943 | 6 |
| 1944 | 13 |
| 1945 | 17 |
| 1946 | 68 |
| 1947 | 62 |
| 1948 | 76 |
| 1949 | 77 |
| 1950 | 74 |
| 1951 | 85 |
| 1952 | 93 |
| 1953 | 108 |
| 1954 | 110 |
| 1955 | 103 |
| 1956 | 104 |
| 1957 | 113 |
| 1958 | 110 |
| 1959 | 92 |
| 1960 | 93 |
| 1961 | 128 |
| 1962 | 131 |
| 1963 | 140 |
| 1964 | 178 |
| 1965 | 201 |
| 1966 | 218 |
| 1967 | 249 |
| 1968 | 233 |
| 1969 | 251 |
| 1970 | 307 |
| 1971 | 280 |
| 1972 | 355 |
| 1973 | 362 |
| 1974 | 399 |
| 1975 | 415 |
| 1976 | 482 |
| 1977 | 471 |
| 1978 | 542 |
| 1979 | 506 |
| 1980 | 546 |
| 1981 | 538 |
| 1982 | 608 |
| 1983 | 585 |
| 1984 | 643 |
| 1985 | 669 |
| 1986 | 740 |
| 1987 | 845 |
| 1988 | 870 |
| 1989 | 900 |
| 1990 | 952 |
| 1991 | 977 |
| 1992 | 946 |
| 1993 | 1038 |
| 1994 | 1069 |
| 1995 | 1109 |
| 1996 | 1114 |
| 1997 | 1054 |
| 1998 | 1007 |
| 1999 | 1102 |
| 2000 | 1205 |
| 2001 | 1159 |
| 2002 | 1213 |
| 2003 | 1319 |
| 2004 | 1461 |
| 2005 | 1507 |
| 2006 | 1618 |
| 2007 | 1782 |
| 2008 | 1639 |
| 2009 | 1698 |
| 2010 | 1845 |
| 2011 | 2075 |
| 2012 | 2205 |
| 2013 | 2268 |
| 2014 | 2424 |
| 2015 | 2515 |
| 2016 | 2693 |
| 2017 | 2636 |
| 2018 | 2726 |
| 2019 | 2794 |
| 2020 | 3221 |
| 2021 | 3307 |
| 2022 | 3124 |
| 2023 | 2945 |
| 2024 | 1027 |