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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1801 | 1 |
| 1804 | 1 |
| 1808 | 3 |
| 1809 | 3 |
| 1823 | 1 |
| 1827 | 1 |
| 1831 | 1 |
| 1832 | 4 |
| 1833 | 2 |
| 1841 | 3 |
| 1842 | 4 |
| 1843 | 6 |
| 1844 | 5 |
| 1845 | 4 |
| 1846 | 2 |
| 1847 | 5 |
| 1848 | 10 |
| 1849 | 5 |
| 1850 | 2 |
| 1851 | 6 |
| 1852 | 8 |
| 1853 | 5 |
| 1854 | 6 |
| 1855 | 7 |
| 1856 | 7 |
| 1857 | 3 |
| 1858 | 1 |
| 1859 | 6 |
| 1860 | 3 |
| 1861 | 2 |
| 1863 | 1 |
| 1864 | 3 |
| 1866 | 5 |
| 1867 | 4 |
| 1868 | 6 |
| 1869 | 3 |
| 1870 | 3 |
| 1871 | 6 |
| 1872 | 7 |
| 1873 | 3 |
| 1874 | 3 |
| 1876 | 4 |
| 1877 | 3 |
| 1878 | 2 |
| 1879 | 3 |
| 1880 | 6 |
| 1881 | 3 |
| 1882 | 2 |
| 1883 | 1 |
| 1884 | 2 |
| 1885 | 3 |
| 1886 | 9 |
| 1887 | 3 |
| 1888 | 9 |
| 1889 | 3 |
| 1890 | 3 |
| 1891 | 4 |
| 1892 | 5 |
| 1893 | 8 |
| 1894 | 7 |
| 1895 | 10 |
| 1896 | 3 |
| 1897 | 10 |
| 1898 | 6 |
| 1899 | 5 |
| 1900 | 14 |
| 1901 | 6 |
| 1902 | 9 |
| 1903 | 10 |
| 1904 | 9 |
| 1905 | 9 |
| 1906 | 13 |
| 1907 | 7 |
| 1908 | 14 |
| 1909 | 11 |
| 1910 | 15 |
| 1911 | 17 |
| 1912 | 19 |
| 1913 | 10 |
| 1914 | 8 |
| 1915 | 11 |
| 1916 | 9 |
| 1917 | 17 |
| 1918 | 19 |
| 1919 | 19 |
| 1920 | 6 |
| 1921 | 14 |
| 1922 | 11 |
| 1923 | 9 |
| 1924 | 14 |
| 1925 | 12 |
| 1926 | 12 |
| 1927 | 8 |
| 1928 | 6 |
| 1929 | 10 |
| 1930 | 18 |
| 1931 | 10 |
| 1932 | 13 |
| 1933 | 8 |
| 1934 | 10 |
| 1935 | 17 |
| 1936 | 14 |
| 1937 | 15 |
| 1938 | 17 |
| 1939 | 22 |
| 1940 | 23 |
| 1941 | 10 |
| 1942 | 23 |
| 1943 | 20 |
| 1944 | 22 |
| 1945 | 41 |
| 1946 | 138 |
| 1947 | 171 |
| 1948 | 132 |
| 1949 | 150 |
| 1950 | 165 |
| 1951 | 186 |
| 1952 | 173 |
| 1953 | 175 |
| 1954 | 167 |
| 1955 | 165 |
| 1956 | 173 |
| 1957 | 184 |
| 1958 | 204 |
| 1959 | 206 |
| 1960 | 237 |
| 1961 | 208 |
| 1962 | 244 |
| 1963 | 293 |
| 1964 | 259 |
| 1965 | 318 |
| 1966 | 319 |
| 1967 | 375 |
| 1968 | 376 |
| 1969 | 500 |
| 1970 | 500 |
| 1971 | 534 |
| 1972 | 498 |
| 1973 | 543 |
| 1974 | 552 |
| 1975 | 648 |
| 1976 | 706 |
| 1977 | 677 |
| 1978 | 748 |
| 1979 | 830 |
| 1980 | 817 |
| 1981 | 872 |
| 1982 | 915 |
| 1983 | 1000 |
| 1984 | 1046 |
| 1985 | 1170 |
| 1986 | 1117 |
| 1987 | 1232 |
| 1988 | 1274 |
| 1989 | 1266 |
| 1990 | 1399 |
| 1991 | 1463 |
| 1992 | 1513 |
| 1993 | 1581 |
| 1994 | 1662 |
| 1995 | 1544 |
| 1996 | 1623 |
| 1997 | 1690 |
| 1998 | 1673 |
| 1999 | 1862 |
| 2000 | 2026 |
| 2001 | 2153 |
| 2002 | 2259 |
| 2003 | 2398 |
| 2004 | 2570 |
| 2005 | 2868 |
| 2006 | 3060 |
| 2007 | 3273 |
| 2008 | 3375 |
| 2009 | 3508 |
| 2010 | 3838 |
| 2011 | 4178 |
| 2012 | 4481 |
| 2013 | 4517 |
| 2014 | 4842 |
| 2015 | 5189 |
| 2016 | 5340 |
| 2017 | 5409 |
| 2018 | 5600 |
| 2019 | 5896 |
| 2020 | 6535 |
| 2021 | 7159 |
| 2022 | 6676 |
| 2023 | 6441 |
| 2024 | 6701 |
| 2025 | 7025 |
| 2026 | 5375 |
| 2027 | 4 |