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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1803 | 1 |
| 1834 | 1 |
| 1837 | 2 |
| 1840 | 2 |
| 1841 | 2 |
| 1842 | 1 |
| 1845 | 1 |
| 1846 | 2 |
| 1848 | 3 |
| 1849 | 1 |
| 1852 | 2 |
| 1856 | 1 |
| 1859 | 1 |
| 1866 | 1 |
| 1867 | 1 |
| 1869 | 4 |
| 1873 | 1 |
| 1874 | 1 |
| 1875 | 3 |
| 1877 | 3 |
| 1878 | 1 |
| 1880 | 1 |
| 1882 | 1 |
| 1883 | 6 |
| 1884 | 8 |
| 1885 | 1 |
| 1886 | 5 |
| 1887 | 2 |
| 1888 | 1 |
| 1889 | 1 |
| 1890 | 4 |
| 1891 | 1 |
| 1892 | 8 |
| 1893 | 4 |
| 1894 | 7 |
| 1895 | 2 |
| 1896 | 2 |
| 1898 | 10 |
| 1899 | 13 |
| 1900 | 9 |
| 1901 | 11 |
| 1902 | 17 |
| 1903 | 37 |
| 1904 | 49 |
| 1905 | 53 |
| 1906 | 56 |
| 1907 | 33 |
| 1908 | 3 |
| 1909 | 7 |
| 1911 | 4 |
| 1912 | 12 |
| 1913 | 8 |
| 1914 | 7 |
| 1915 | 8 |
| 1916 | 14 |
| 1917 | 13 |
| 1918 | 8 |
| 1919 | 16 |
| 1920 | 8 |
| 1921 | 7 |
| 1922 | 8 |
| 1923 | 4 |
| 1924 | 10 |
| 1925 | 9 |
| 1926 | 9 |
| 1927 | 7 |
| 1928 | 23 |
| 1929 | 15 |
| 1930 | 10 |
| 1931 | 17 |
| 1932 | 19 |
| 1933 | 28 |
| 1934 | 24 |
| 1935 | 19 |
| 1936 | 24 |
| 1937 | 30 |
| 1938 | 21 |
| 1939 | 17 |
| 1940 | 19 |
| 1941 | 13 |
| 1942 | 13 |
| 1943 | 12 |
| 1944 | 12 |
| 1945 | 31 |
| 1946 | 102 |
| 1947 | 78 |
| 1948 | 54 |
| 1949 | 45 |
| 1950 | 55 |
| 1951 | 82 |
| 1952 | 106 |
| 1953 | 99 |
| 1954 | 61 |
| 1955 | 64 |
| 1956 | 58 |
| 1957 | 56 |
| 1958 | 61 |
| 1959 | 59 |
| 1960 | 45 |
| 1961 | 63 |
| 1962 | 54 |
| 1963 | 95 |
| 1964 | 137 |
| 1965 | 120 |
| 1966 | 131 |
| 1967 | 160 |
| 1968 | 148 |
| 1969 | 179 |
| 1970 | 167 |
| 1971 | 190 |
| 1972 | 178 |
| 1973 | 169 |
| 1974 | 183 |
| 1975 | 224 |
| 1976 | 226 |
| 1977 | 215 |
| 1978 | 273 |
| 1979 | 229 |
| 1980 | 281 |
| 1981 | 301 |
| 1982 | 379 |
| 1983 | 528 |
| 1984 | 657 |
| 1985 | 797 |
| 1986 | 1058 |
| 1987 | 1322 |
| 1988 | 1503 |
| 1989 | 1936 |
| 1990 | 2658 |
| 1991 | 2681 |
| 1992 | 2936 |
| 1993 | 3200 |
| 1994 | 3326 |
| 1995 | 3570 |
| 1996 | 3466 |
| 1997 | 3537 |
| 1998 | 3627 |
| 1999 | 3719 |
| 2000 | 4329 |
| 2001 | 4310 |
| 2002 | 4525 |
| 2003 | 4632 |
| 2004 | 5084 |
| 2005 | 5268 |
| 2006 | 5513 |
| 2007 | 5788 |
| 2008 | 6083 |
| 2009 | 6805 |
| 2010 | 7293 |
| 2011 | 8290 |
| 2012 | 8956 |
| 2013 | 9513 |
| 2014 | 10609 |
| 2015 | 11753 |
| 2016 | 12206 |
| 2017 | 12971 |
| 2018 | 14222 |
| 2019 | 15855 |
| 2020 | 18999 |
| 2021 | 21711 |
| 2022 | 21431 |
| 2023 | 21017 |
| 2024 | 9936 |