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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1842 | 1 |
| 1859 | 5 |
| 1860 | 10 |
| 1861 | 7 |
| 1889 | 1 |
| 1894 | 1 |
| 1895 | 2 |
| 1899 | 1 |
| 1900 | 1 |
| 1901 | 1 |
| 1905 | 2 |
| 1906 | 1 |
| 1907 | 3 |
| 1908 | 1 |
| 1909 | 2 |
| 1910 | 1 |
| 1911 | 3 |
| 1912 | 1 |
| 1913 | 4 |
| 1914 | 4 |
| 1915 | 4 |
| 1916 | 3 |
| 1917 | 5 |
| 1918 | 3 |
| 1919 | 5 |
| 1920 | 1 |
| 1921 | 3 |
| 1922 | 9 |
| 1923 | 2 |
| 1924 | 3 |
| 1927 | 1 |
| 1928 | 2 |
| 1929 | 4 |
| 1931 | 3 |
| 1932 | 2 |
| 1935 | 1 |
| 1936 | 3 |
| 1937 | 3 |
| 1938 | 1 |
| 1939 | 1 |
| 1943 | 1 |
| 1944 | 2 |
| 1945 | 10 |
| 1946 | 50 |
| 1947 | 85 |
| 1948 | 96 |
| 1949 | 83 |
| 1950 | 93 |
| 1951 | 121 |
| 1952 | 162 |
| 1953 | 159 |
| 1954 | 149 |
| 1955 | 154 |
| 1956 | 148 |
| 1957 | 160 |
| 1958 | 126 |
| 1959 | 125 |
| 1960 | 112 |
| 1961 | 125 |
| 1962 | 128 |
| 1963 | 133 |
| 1964 | 179 |
| 1965 | 219 |
| 1966 | 211 |
| 1967 | 229 |
| 1968 | 243 |
| 1969 | 272 |
| 1970 | 258 |
| 1971 | 309 |
| 1972 | 319 |
| 1973 | 306 |
| 1974 | 301 |
| 1975 | 362 |
| 1976 | 410 |
| 1977 | 412 |
| 1978 | 469 |
| 1979 | 501 |
| 1980 | 485 |
| 1981 | 470 |
| 1982 | 559 |
| 1983 | 633 |
| 1984 | 607 |
| 1985 | 705 |
| 1986 | 719 |
| 1987 | 796 |
| 1988 | 773 |
| 1989 | 848 |
| 1990 | 900 |
| 1991 | 933 |
| 1992 | 862 |
| 1993 | 913 |
| 1994 | 984 |
| 1995 | 997 |
| 1996 | 1151 |
| 1997 | 1032 |
| 1998 | 1086 |
| 1999 | 1169 |
| 2000 | 1209 |
| 2001 | 1270 |
| 2002 | 1330 |
| 2003 | 1353 |
| 2004 | 1406 |
| 2005 | 1549 |
| 2006 | 1545 |
| 2007 | 1683 |
| 2008 | 1859 |
| 2009 | 1929 |
| 2010 | 2046 |
| 2011 | 2234 |
| 2012 | 2324 |
| 2013 | 2527 |
| 2014 | 2677 |
| 2015 | 2865 |
| 2016 | 2962 |
| 2017 | 2942 |
| 2018 | 2957 |
| 2019 | 2917 |
| 2020 | 3390 |
| 2021 | 3748 |
| 2022 | 3428 |
| 2023 | 3247 |
| 2024 | 1276 |