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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1840 | 1 |
| 1841 | 3 |
| 1843 | 4 |
| 1844 | 1 |
| 1850 | 1 |
| 1882 | 2 |
| 1889 | 1 |
| 1903 | 1 |
| 1907 | 1 |
| 1910 | 2 |
| 1911 | 1 |
| 1912 | 2 |
| 1915 | 2 |
| 1917 | 3 |
| 1918 | 1 |
| 1919 | 3 |
| 1920 | 2 |
| 1922 | 2 |
| 1923 | 1 |
| 1924 | 1 |
| 1925 | 2 |
| 1926 | 2 |
| 1927 | 3 |
| 1928 | 2 |
| 1931 | 2 |
| 1934 | 3 |
| 1936 | 2 |
| 1937 | 3 |
| 1939 | 2 |
| 1940 | 1 |
| 1941 | 1 |
| 1942 | 1 |
| 1944 | 2 |
| 1945 | 5 |
| 1946 | 19 |
| 1947 | 26 |
| 1948 | 25 |
| 1949 | 23 |
| 1950 | 11 |
| 1951 | 21 |
| 1952 | 27 |
| 1953 | 26 |
| 1954 | 24 |
| 1955 | 31 |
| 1956 | 25 |
| 1957 | 30 |
| 1958 | 22 |
| 1959 | 28 |
| 1960 | 29 |
| 1961 | 23 |
| 1962 | 22 |
| 1963 | 38 |
| 1964 | 43 |
| 1965 | 48 |
| 1966 | 65 |
| 1967 | 63 |
| 1968 | 78 |
| 1969 | 73 |
| 1970 | 79 |
| 1971 | 97 |
| 1972 | 92 |
| 1973 | 97 |
| 1974 | 127 |
| 1975 | 115 |
| 1976 | 118 |
| 1977 | 121 |
| 1978 | 146 |
| 1979 | 132 |
| 1980 | 123 |
| 1981 | 162 |
| 1982 | 146 |
| 1983 | 195 |
| 1984 | 166 |
| 1985 | 219 |
| 1986 | 230 |
| 1987 | 255 |
| 1988 | 255 |
| 1989 | 264 |
| 1990 | 288 |
| 1991 | 349 |
| 1992 | 334 |
| 1993 | 366 |
| 1994 | 396 |
| 1995 | 374 |
| 1996 | 404 |
| 1997 | 388 |
| 1998 | 382 |
| 1999 | 421 |
| 2000 | 426 |
| 2001 | 498 |
| 2002 | 482 |
| 2003 | 532 |
| 2004 | 617 |
| 2005 | 664 |
| 2006 | 699 |
| 2007 | 821 |
| 2008 | 896 |
| 2009 | 898 |
| 2010 | 1040 |
| 2011 | 1153 |
| 2012 | 1159 |
| 2013 | 1256 |
| 2014 | 1338 |
| 2015 | 1377 |
| 2016 | 1377 |
| 2017 | 1417 |
| 2018 | 1536 |
| 2019 | 1578 |
| 2020 | 1826 |
| 2021 | 1950 |
| 2022 | 1926 |
| 2023 | 1907 |
| 2024 | 1806 |
| 2025 | 1521 |