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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1818 | 4 |
| 1845 | 1 |
| 1868 | 1 |
| 1869 | 2 |
| 1870 | 2 |
| 1872 | 1 |
| 1874 | 2 |
| 1875 | 3 |
| 1876 | 2 |
| 1877 | 3 |
| 1878 | 4 |
| 1879 | 4 |
| 1880 | 2 |
| 1881 | 3 |
| 1883 | 1 |
| 1884 | 1 |
| 1886 | 3 |
| 1887 | 2 |
| 1888 | 5 |
| 1889 | 3 |
| 1890 | 11 |
| 1891 | 3 |
| 1892 | 1 |
| 1893 | 1 |
| 1894 | 5 |
| 1895 | 2 |
| 1897 | 4 |
| 1898 | 4 |
| 1899 | 2 |
| 1900 | 3 |
| 1901 | 4 |
| 1904 | 2 |
| 1905 | 2 |
| 1906 | 1 |
| 1907 | 3 |
| 1908 | 2 |
| 1909 | 2 |
| 1911 | 2 |
| 1912 | 2 |
| 1913 | 2 |
| 1914 | 3 |
| 1917 | 2 |
| 1919 | 1 |
| 1920 | 2 |
| 1922 | 3 |
| 1923 | 7 |
| 1924 | 6 |
| 1925 | 3 |
| 1926 | 2 |
| 1927 | 3 |
| 1928 | 2 |
| 1929 | 2 |
| 1930 | 3 |
| 1931 | 6 |
| 1932 | 5 |
| 1933 | 4 |
| 1934 | 5 |
| 1935 | 6 |
| 1936 | 2 |
| 1937 | 1 |
| 1938 | 5 |
| 1940 | 5 |
| 1941 | 4 |
| 1942 | 2 |
| 1943 | 2 |
| 1944 | 3 |
| 1945 | 3 |
| 1946 | 7 |
| 1947 | 29 |
| 1948 | 17 |
| 1949 | 21 |
| 1950 | 24 |
| 1951 | 20 |
| 1952 | 23 |
| 1953 | 15 |
| 1954 | 20 |
| 1955 | 10 |
| 1956 | 16 |
| 1957 | 30 |
| 1958 | 21 |
| 1959 | 23 |
| 1960 | 24 |
| 1961 | 36 |
| 1962 | 26 |
| 1963 | 32 |
| 1964 | 37 |
| 1965 | 53 |
| 1966 | 43 |
| 1967 | 50 |
| 1968 | 55 |
| 1969 | 59 |
| 1970 | 70 |
| 1971 | 80 |
| 1972 | 84 |
| 1973 | 108 |
| 1974 | 100 |
| 1975 | 149 |
| 1976 | 121 |
| 1977 | 158 |
| 1978 | 154 |
| 1979 | 147 |
| 1980 | 155 |
| 1981 | 159 |
| 1982 | 169 |
| 1983 | 169 |
| 1984 | 178 |
| 1985 | 197 |
| 1986 | 219 |
| 1987 | 242 |
| 1988 | 259 |
| 1989 | 272 |
| 1990 | 258 |
| 1991 | 286 |
| 1992 | 327 |
| 1993 | 298 |
| 1994 | 348 |
| 1995 | 341 |
| 1996 | 344 |
| 1997 | 396 |
| 1998 | 396 |
| 1999 | 382 |
| 2000 | 404 |
| 2001 | 414 |
| 2002 | 399 |
| 2003 | 395 |
| 2004 | 444 |
| 2005 | 493 |
| 2006 | 529 |
| 2007 | 560 |
| 2008 | 599 |
| 2009 | 633 |
| 2010 | 703 |
| 2011 | 736 |
| 2012 | 768 |
| 2013 | 849 |
| 2014 | 896 |
| 2015 | 955 |
| 2016 | 943 |
| 2017 | 1086 |
| 2018 | 1108 |
| 2019 | 1045 |
| 2020 | 1199 |
| 2021 | 1323 |
| 2022 | 1224 |
| 2023 | 1112 |
| 2024 | 1182 |
| 2025 | 871 |