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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1821 | 1 |
| 1827 | 1 |
| 1828 | 4 |
| 1829 | 1 |
| 1831 | 1 |
| 1836 | 1 |
| 1838 | 4 |
| 1840 | 1 |
| 1841 | 1 |
| 1842 | 1 |
| 1843 | 2 |
| 1847 | 1 |
| 1848 | 1 |
| 1851 | 1 |
| 1855 | 2 |
| 1856 | 2 |
| 1857 | 2 |
| 1858 | 2 |
| 1863 | 2 |
| 1864 | 1 |
| 1870 | 1 |
| 1871 | 2 |
| 1872 | 2 |
| 1875 | 1 |
| 1876 | 1 |
| 1877 | 1 |
| 1879 | 6 |
| 1880 | 4 |
| 1881 | 5 |
| 1882 | 3 |
| 1884 | 1 |
| 1886 | 2 |
| 1887 | 3 |
| 1889 | 4 |
| 1890 | 4 |
| 1891 | 2 |
| 1892 | 4 |
| 1893 | 4 |
| 1894 | 1 |
| 1895 | 6 |
| 1896 | 2 |
| 1897 | 2 |
| 1898 | 3 |
| 1899 | 2 |
| 1900 | 1 |
| 1902 | 2 |
| 1903 | 2 |
| 1904 | 4 |
| 1905 | 1 |
| 1906 | 1 |
| 1907 | 2 |
| 1908 | 2 |
| 1909 | 1 |
| 1910 | 5 |
| 1911 | 11 |
| 1912 | 2 |
| 1913 | 6 |
| 1914 | 3 |
| 1915 | 1 |
| 1916 | 4 |
| 1917 | 4 |
| 1918 | 2 |
| 1919 | 8 |
| 1920 | 2 |
| 1922 | 4 |
| 1923 | 1 |
| 1924 | 3 |
| 1925 | 5 |
| 1926 | 1 |
| 1927 | 3 |
| 1928 | 4 |
| 1929 | 3 |
| 1930 | 3 |
| 1931 | 6 |
| 1932 | 4 |
| 1933 | 7 |
| 1934 | 8 |
| 1935 | 7 |
| 1936 | 3 |
| 1937 | 7 |
| 1938 | 5 |
| 1939 | 3 |
| 1940 | 2 |
| 1941 | 5 |
| 1942 | 2 |
| 1943 | 4 |
| 1944 | 11 |
| 1945 | 15 |
| 1946 | 38 |
| 1947 | 56 |
| 1948 | 53 |
| 1949 | 42 |
| 1950 | 48 |
| 1951 | 61 |
| 1952 | 54 |
| 1953 | 53 |
| 1954 | 35 |
| 1955 | 47 |
| 1956 | 56 |
| 1957 | 38 |
| 1958 | 50 |
| 1959 | 53 |
| 1960 | 52 |
| 1961 | 68 |
| 1962 | 69 |
| 1963 | 76 |
| 1964 | 89 |
| 1965 | 109 |
| 1966 | 115 |
| 1967 | 107 |
| 1968 | 143 |
| 1969 | 141 |
| 1970 | 140 |
| 1971 | 154 |
| 1972 | 167 |
| 1973 | 195 |
| 1974 | 213 |
| 1975 | 219 |
| 1976 | 221 |
| 1977 | 188 |
| 1978 | 200 |
| 1979 | 223 |
| 1980 | 187 |
| 1981 | 224 |
| 1982 | 254 |
| 1983 | 258 |
| 1984 | 285 |
| 1985 | 304 |
| 1986 | 297 |
| 1987 | 373 |
| 1988 | 299 |
| 1989 | 332 |
| 1990 | 370 |
| 1991 | 375 |
| 1992 | 417 |
| 1993 | 1297 |
| 1994 | 457 |
| 1995 | 423 |
| 1996 | 401 |
| 1997 | 418 |
| 1998 | 469 |
| 1999 | 482 |
| 2000 | 558 |
| 2001 | 572 |
| 2002 | 614 |
| 2003 | 635 |
| 2004 | 706 |
| 2005 | 721 |
| 2006 | 724 |
| 2007 | 870 |
| 2008 | 895 |
| 2009 | 967 |
| 2010 | 1050 |
| 2011 | 1112 |
| 2012 | 1222 |
| 2013 | 1308 |
| 2014 | 1463 |
| 2015 | 1551 |
| 2016 | 1588 |
| 2017 | 1781 |
| 2018 | 1788 |
| 2019 | 1904 |
| 2020 | 2179 |
| 2021 | 2285 |
| 2022 | 2148 |
| 2023 | 2132 |
| 2024 | 857 |