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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1831 | 1 |
| 1843 | 3 |
| 1844 | 2 |
| 1845 | 2 |
| 1846 | 1 |
| 1847 | 1 |
| 1848 | 2 |
| 1849 | 1 |
| 1850 | 2 |
| 1851 | 3 |
| 1852 | 3 |
| 1853 | 4 |
| 1854 | 3 |
| 1855 | 7 |
| 1856 | 5 |
| 1857 | 1 |
| 1859 | 4 |
| 1861 | 1 |
| 1863 | 1 |
| 1864 | 1 |
| 1867 | 1 |
| 1870 | 1 |
| 1871 | 1 |
| 1872 | 1 |
| 1873 | 1 |
| 1876 | 1 |
| 1877 | 1 |
| 1878 | 2 |
| 1879 | 1 |
| 1880 | 2 |
| 1881 | 1 |
| 1882 | 1 |
| 1884 | 1 |
| 1885 | 1 |
| 1886 | 4 |
| 1888 | 1 |
| 1889 | 1 |
| 1891 | 1 |
| 1893 | 2 |
| 1894 | 1 |
| 1895 | 1 |
| 1896 | 1 |
| 1897 | 1 |
| 1900 | 4 |
| 1902 | 4 |
| 1903 | 3 |
| 1904 | 1 |
| 1905 | 2 |
| 1906 | 2 |
| 1907 | 1 |
| 1908 | 3 |
| 1909 | 4 |
| 1910 | 3 |
| 1911 | 3 |
| 1912 | 8 |
| 1913 | 3 |
| 1914 | 2 |
| 1915 | 3 |
| 1916 | 4 |
| 1917 | 1 |
| 1919 | 4 |
| 1920 | 3 |
| 1921 | 12 |
| 1922 | 2 |
| 1923 | 2 |
| 1924 | 4 |
| 1925 | 4 |
| 1926 | 5 |
| 1927 | 1 |
| 1928 | 2 |
| 1929 | 4 |
| 1930 | 5 |
| 1931 | 1 |
| 1934 | 2 |
| 1935 | 1 |
| 1938 | 1 |
| 1939 | 2 |
| 1940 | 1 |
| 1941 | 1 |
| 1942 | 3 |
| 1943 | 1 |
| 1944 | 1 |
| 1945 | 4 |
| 1946 | 11 |
| 1947 | 19 |
| 1948 | 15 |
| 1949 | 12 |
| 1950 | 18 |
| 1951 | 19 |
| 1952 | 27 |
| 1953 | 17 |
| 1954 | 16 |
| 1955 | 18 |
| 1956 | 25 |
| 1957 | 16 |
| 1958 | 17 |
| 1959 | 20 |
| 1960 | 19 |
| 1961 | 22 |
| 1962 | 25 |
| 1963 | 24 |
| 1964 | 26 |
| 1965 | 40 |
| 1966 | 29 |
| 1967 | 40 |
| 1968 | 47 |
| 1969 | 61 |
| 1970 | 65 |
| 1971 | 53 |
| 1972 | 54 |
| 1973 | 59 |
| 1974 | 68 |
| 1975 | 69 |
| 1976 | 73 |
| 1977 | 82 |
| 1978 | 76 |
| 1979 | 88 |
| 1980 | 59 |
| 1981 | 75 |
| 1982 | 87 |
| 1983 | 96 |
| 1984 | 107 |
| 1985 | 113 |
| 1986 | 102 |
| 1987 | 124 |
| 1988 | 133 |
| 1989 | 145 |
| 1990 | 155 |
| 1991 | 152 |
| 1992 | 156 |
| 1993 | 185 |
| 1994 | 162 |
| 1995 | 167 |
| 1996 | 168 |
| 1997 | 159 |
| 1998 | 177 |
| 1999 | 196 |
| 2000 | 187 |
| 2001 | 201 |
| 2002 | 211 |
| 2003 | 233 |
| 2004 | 222 |
| 2005 | 284 |
| 2006 | 330 |
| 2007 | 337 |
| 2008 | 372 |
| 2009 | 390 |
| 2010 | 394 |
| 2011 | 425 |
| 2012 | 492 |
| 2013 | 503 |
| 2014 | 574 |
| 2015 | 571 |
| 2016 | 600 |
| 2017 | 584 |
| 2018 | 571 |
| 2019 | 682 |
| 2020 | 694 |
| 2021 | 844 |
| 2022 | 715 |
| 2023 | 666 |