Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1797 | 1 |
| 1804 | 1 |
| 1811 | 1 |
| 1814 | 1 |
| 1829 | 1 |
| 1834 | 3 |
| 1844 | 1 |
| 1845 | 1 |
| 1855 | 1 |
| 1858 | 1 |
| 1860 | 1 |
| 1861 | 2 |
| 1862 | 1 |
| 1864 | 1 |
| 1865 | 2 |
| 1866 | 5 |
| 1869 | 2 |
| 1870 | 2 |
| 1872 | 2 |
| 1873 | 1 |
| 1875 | 1 |
| 1878 | 1 |
| 1880 | 3 |
| 1881 | 2 |
| 1882 | 4 |
| 1883 | 1 |
| 1884 | 5 |
| 1885 | 3 |
| 1886 | 8 |
| 1887 | 2 |
| 1888 | 1 |
| 1890 | 4 |
| 1891 | 1 |
| 1892 | 2 |
| 1893 | 4 |
| 1894 | 6 |
| 1895 | 5 |
| 1896 | 2 |
| 1897 | 3 |
| 1898 | 4 |
| 1899 | 5 |
| 1900 | 1 |
| 1901 | 3 |
| 1902 | 4 |
| 1903 | 2 |
| 1904 | 4 |
| 1905 | 2 |
| 1906 | 3 |
| 1907 | 4 |
| 1908 | 1 |
| 1909 | 2 |
| 1911 | 1 |
| 1912 | 2 |
| 1913 | 3 |
| 1914 | 1 |
| 1915 | 3 |
| 1917 | 3 |
| 1918 | 1 |
| 1920 | 2 |
| 1921 | 1 |
| 1922 | 2 |
| 1923 | 5 |
| 1924 | 3 |
| 1925 | 1 |
| 1926 | 6 |
| 1927 | 7 |
| 1928 | 2 |
| 1929 | 6 |
| 1930 | 5 |
| 1931 | 6 |
| 1932 | 7 |
| 1933 | 8 |
| 1934 | 7 |
| 1935 | 1 |
| 1936 | 3 |
| 1937 | 7 |
| 1938 | 5 |
| 1939 | 3 |
| 1940 | 6 |
| 1941 | 2 |
| 1943 | 5 |
| 1944 | 4 |
| 1945 | 10 |
| 1946 | 24 |
| 1947 | 26 |
| 1948 | 44 |
| 1949 | 46 |
| 1950 | 38 |
| 1951 | 43 |
| 1952 | 54 |
| 1953 | 68 |
| 1954 | 44 |
| 1955 | 53 |
| 1956 | 55 |
| 1957 | 56 |
| 1958 | 85 |
| 1959 | 79 |
| 1960 | 90 |
| 1961 | 44 |
| 1962 | 93 |
| 1963 | 105 |
| 1964 | 102 |
| 1965 | 108 |
| 1966 | 115 |
| 1967 | 138 |
| 1968 | 132 |
| 1969 | 160 |
| 1970 | 202 |
| 1971 | 189 |
| 1972 | 195 |
| 1973 | 196 |
| 1974 | 197 |
| 1975 | 248 |
| 1976 | 248 |
| 1977 | 253 |
| 1978 | 226 |
| 1979 | 281 |
| 1980 | 249 |
| 1981 | 283 |
| 1982 | 301 |
| 1983 | 348 |
| 1984 | 352 |
| 1985 | 347 |
| 1986 | 318 |
| 1987 | 366 |
| 1988 | 352 |
| 1989 | 421 |
| 1990 | 412 |
| 1991 | 410 |
| 1992 | 375 |
| 1993 | 384 |
| 1994 | 412 |
| 1995 | 449 |
| 1996 | 426 |
| 1997 | 411 |
| 1998 | 359 |
| 1999 | 419 |
| 2000 | 449 |
| 2001 | 458 |
| 2002 | 491 |
| 2003 | 481 |
| 2004 | 580 |
| 2005 | 609 |
| 2006 | 634 |
| 2007 | 662 |
| 2008 | 741 |
| 2009 | 785 |
| 2010 | 806 |
| 2011 | 870 |
| 2012 | 897 |
| 2013 | 1030 |
| 2014 | 1106 |
| 2015 | 1107 |
| 2016 | 1072 |
| 2017 | 1176 |
| 2018 | 1221 |
| 2019 | 1143 |
| 2020 | 1301 |
| 2021 | 1425 |
| 2022 | 130 |