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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1817 | 1 |
| 1821 | 1 |
| 1823 | 1 |
| 1827 | 1 |
| 1829 | 2 |
| 1845 | 1 |
| 1846 | 2 |
| 1847 | 3 |
| 1849 | 1 |
| 1850 | 3 |
| 1858 | 1 |
| 1860 | 1 |
| 1861 | 2 |
| 1864 | 1 |
| 1866 | 3 |
| 1868 | 1 |
| 1869 | 3 |
| 1871 | 4 |
| 1872 | 4 |
| 1873 | 1 |
| 1874 | 2 |
| 1875 | 2 |
| 1877 | 4 |
| 1878 | 1 |
| 1879 | 5 |
| 1880 | 2 |
| 1882 | 1 |
| 1883 | 2 |
| 1884 | 1 |
| 1885 | 1 |
| 1888 | 2 |
| 1889 | 2 |
| 1890 | 2 |
| 1891 | 2 |
| 1893 | 2 |
| 1894 | 2 |
| 1895 | 1 |
| 1896 | 3 |
| 1897 | 2 |
| 1898 | 1 |
| 1899 | 2 |
| 1900 | 3 |
| 1901 | 6 |
| 1902 | 6 |
| 1903 | 6 |
| 1904 | 3 |
| 1905 | 5 |
| 1906 | 5 |
| 1907 | 6 |
| 1908 | 5 |
| 1909 | 6 |
| 1910 | 5 |
| 1911 | 9 |
| 1912 | 10 |
| 1913 | 9 |
| 1914 | 4 |
| 1915 | 2 |
| 1916 | 9 |
| 1917 | 4 |
| 1918 | 9 |
| 1919 | 4 |
| 1920 | 7 |
| 1921 | 9 |
| 1922 | 13 |
| 1923 | 11 |
| 1924 | 11 |
| 1925 | 11 |
| 1926 | 13 |
| 1927 | 10 |
| 1928 | 17 |
| 1929 | 13 |
| 1930 | 7 |
| 1931 | 4 |
| 1932 | 10 |
| 1933 | 11 |
| 1934 | 24 |
| 1935 | 20 |
| 1936 | 19 |
| 1937 | 26 |
| 1938 | 21 |
| 1939 | 23 |
| 1940 | 16 |
| 1941 | 15 |
| 1942 | 16 |
| 1943 | 19 |
| 1944 | 13 |
| 1945 | 29 |
| 1946 | 89 |
| 1947 | 98 |
| 1948 | 112 |
| 1949 | 104 |
| 1950 | 103 |
| 1951 | 139 |
| 1952 | 122 |
| 1953 | 117 |
| 1954 | 92 |
| 1955 | 138 |
| 1956 | 132 |
| 1957 | 140 |
| 1958 | 126 |
| 1959 | 138 |
| 1960 | 132 |
| 1961 | 130 |
| 1962 | 133 |
| 1963 | 133 |
| 1964 | 196 |
| 1965 | 223 |
| 1966 | 244 |
| 1967 | 214 |
| 1968 | 246 |
| 1969 | 240 |
| 1970 | 252 |
| 1971 | 286 |
| 1972 | 308 |
| 1973 | 295 |
| 1974 | 309 |
| 1975 | 357 |
| 1976 | 347 |
| 1977 | 382 |
| 1978 | 339 |
| 1979 | 381 |
| 1980 | 393 |
| 1981 | 399 |
| 1982 | 391 |
| 1983 | 460 |
| 1984 | 500 |
| 1985 | 517 |
| 1986 | 530 |
| 1987 | 568 |
| 1988 | 596 |
| 1989 | 574 |
| 1990 | 632 |
| 1991 | 650 |
| 1992 | 636 |
| 1993 | 673 |
| 1994 | 669 |
| 1995 | 717 |
| 1996 | 696 |
| 1997 | 693 |
| 1998 | 695 |
| 1999 | 718 |
| 2000 | 781 |
| 2001 | 876 |
| 2002 | 827 |
| 2003 | 842 |
| 2004 | 921 |
| 2005 | 1051 |
| 2006 | 1099 |
| 2007 | 1124 |
| 2008 | 1257 |
| 2009 | 1354 |
| 2010 | 1369 |
| 2011 | 1430 |
| 2012 | 1528 |
| 2013 | 1712 |
| 2014 | 1873 |
| 2015 | 2179 |
| 2016 | 2262 |
| 2017 | 2306 |
| 2018 | 2531 |
| 2019 | 2527 |
| 2020 | 2814 |
| 2021 | 2995 |
| 2022 | 2869 |
| 2023 | 2876 |
| 2024 | 1089 |