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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1797 | 1 |
| 1799 | 1 |
| 1803 | 1 |
| 1804 | 9 |
| 1805 | 6 |
| 1806 | 1 |
| 1807 | 2 |
| 1808 | 7 |
| 1809 | 1 |
| 1810 | 2 |
| 1811 | 3 |
| 1814 | 7 |
| 1815 | 12 |
| 1816 | 6 |
| 1820 | 2 |
| 1840 | 1 |
| 1841 | 2 |
| 1842 | 7 |
| 1843 | 1 |
| 1844 | 1 |
| 1845 | 3 |
| 1847 | 1 |
| 1850 | 1 |
| 1851 | 2 |
| 1858 | 1 |
| 1860 | 1 |
| 1861 | 1 |
| 1862 | 1 |
| 1863 | 1 |
| 1864 | 1 |
| 1869 | 4 |
| 1870 | 2 |
| 1871 | 1 |
| 1872 | 2 |
| 1873 | 3 |
| 1874 | 1 |
| 1876 | 2 |
| 1878 | 8 |
| 1879 | 4 |
| 1880 | 1 |
| 1881 | 1 |
| 1882 | 3 |
| 1883 | 1 |
| 1884 | 1 |
| 1885 | 1 |
| 1886 | 5 |
| 1887 | 1 |
| 1889 | 4 |
| 1890 | 1 |
| 1891 | 1 |
| 1892 | 2 |
| 1893 | 10 |
| 1894 | 13 |
| 1895 | 8 |
| 1896 | 9 |
| 1897 | 15 |
| 1898 | 7 |
| 1899 | 7 |
| 1900 | 1 |
| 1901 | 3 |
| 1902 | 3 |
| 1903 | 4 |
| 1904 | 6 |
| 1905 | 6 |
| 1906 | 6 |
| 1907 | 13 |
| 1908 | 10 |
| 1909 | 4 |
| 1910 | 9 |
| 1911 | 9 |
| 1912 | 2 |
| 1913 | 8 |
| 1914 | 4 |
| 1915 | 8 |
| 1916 | 4 |
| 1917 | 19 |
| 1918 | 4 |
| 1919 | 5 |
| 1920 | 4 |
| 1921 | 18 |
| 1922 | 11 |
| 1923 | 7 |
| 1924 | 6 |
| 1925 | 13 |
| 1926 | 10 |
| 1927 | 5 |
| 1928 | 9 |
| 1929 | 8 |
| 1930 | 5 |
| 1931 | 10 |
| 1932 | 16 |
| 1933 | 8 |
| 1934 | 10 |
| 1935 | 14 |
| 1936 | 12 |
| 1937 | 14 |
| 1938 | 20 |
| 1939 | 14 |
| 1940 | 6 |
| 1941 | 6 |
| 1942 | 9 |
| 1943 | 10 |
| 1944 | 4 |
| 1945 | 32 |
| 1946 | 62 |
| 1947 | 100 |
| 1948 | 110 |
| 1949 | 99 |
| 1950 | 85 |
| 1951 | 115 |
| 1952 | 113 |
| 1953 | 121 |
| 1954 | 124 |
| 1955 | 116 |
| 1956 | 122 |
| 1957 | 130 |
| 1958 | 112 |
| 1959 | 120 |
| 1960 | 119 |
| 1961 | 165 |
| 1962 | 139 |
| 1963 | 157 |
| 1964 | 198 |
| 1965 | 220 |
| 1966 | 202 |
| 1967 | 247 |
| 1968 | 238 |
| 1969 | 302 |
| 1970 | 300 |
| 1971 | 331 |
| 1972 | 328 |
| 1973 | 381 |
| 1974 | 337 |
| 1975 | 387 |
| 1976 | 386 |
| 1977 | 417 |
| 1978 | 445 |
| 1979 | 463 |
| 1980 | 491 |
| 1981 | 506 |
| 1982 | 567 |
| 1983 | 631 |
| 1984 | 600 |
| 1985 | 634 |
| 1986 | 736 |
| 1987 | 693 |
| 1988 | 728 |
| 1989 | 834 |
| 1990 | 817 |
| 1991 | 834 |
| 1992 | 878 |
| 1993 | 876 |
| 1994 | 891 |
| 1995 | 902 |
| 1996 | 935 |
| 1997 | 920 |
| 1998 | 959 |
| 1999 | 1000 |
| 2000 | 1050 |
| 2001 | 1141 |
| 2002 | 1130 |
| 2003 | 1167 |
| 2004 | 1297 |
| 2005 | 1338 |
| 2006 | 1479 |
| 2007 | 1677 |
| 2008 | 1661 |
| 2009 | 1818 |
| 2010 | 1898 |
| 2011 | 1999 |
| 2012 | 2123 |
| 2013 | 2236 |
| 2014 | 2355 |
| 2015 | 2430 |
| 2016 | 2508 |
| 2017 | 2567 |
| 2018 | 2567 |
| 2019 | 2736 |
| 2020 | 3182 |
| 2021 | 3392 |
| 2022 | 3142 |
| 2023 | 2992 |
| 2024 | 2908 |
| 2025 | 3110 |
| 2026 | 1070 |
| 2027 | 1 |