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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1852 | 3 |
| 1853 | 2 |
| 1854 | 1 |
| 1856 | 3 |
| 1857 | 1 |
| 1859 | 2 |
| 1860 | 1 |
| 1861 | 5 |
| 1862 | 5 |
| 1863 | 3 |
| 1864 | 3 |
| 1865 | 5 |
| 1867 | 1 |
| 1868 | 2 |
| 1869 | 1 |
| 1870 | 1 |
| 1874 | 3 |
| 1886 | 1 |
| 1908 | 1 |
| 1919 | 1 |
| 1921 | 1 |
| 1926 | 2 |
| 1927 | 2 |
| 1934 | 1 |
| 1936 | 1 |
| 1943 | 1 |
| 1945 | 1 |
| 1946 | 7 |
| 1947 | 8 |
| 1948 | 7 |
| 1949 | 8 |
| 1950 | 6 |
| 1951 | 6 |
| 1952 | 6 |
| 1953 | 3 |
| 1954 | 5 |
| 1955 | 5 |
| 1956 | 5 |
| 1957 | 14 |
| 1958 | 9 |
| 1959 | 4 |
| 1960 | 11 |
| 1961 | 9 |
| 1962 | 25 |
| 1963 | 10 |
| 1964 | 17 |
| 1965 | 20 |
| 1966 | 18 |
| 1967 | 24 |
| 1968 | 24 |
| 1969 | 20 |
| 1970 | 24 |
| 1971 | 27 |
| 1972 | 39 |
| 1973 | 37 |
| 1974 | 38 |
| 1975 | 44 |
| 1976 | 51 |
| 1977 | 57 |
| 1978 | 69 |
| 1979 | 63 |
| 1980 | 36 |
| 1981 | 77 |
| 1982 | 54 |
| 1983 | 64 |
| 1984 | 79 |
| 1985 | 91 |
| 1986 | 95 |
| 1987 | 126 |
| 1988 | 126 |
| 1989 | 155 |
| 1990 | 169 |
| 1991 | 201 |
| 1992 | 185 |
| 1993 | 203 |
| 1994 | 247 |
| 1995 | 280 |
| 1996 | 296 |
| 1997 | 317 |
| 1998 | 371 |
| 1999 | 454 |
| 2000 | 554 |
| 2001 | 666 |
| 2002 | 751 |
| 2003 | 932 |
| 2004 | 1118 |
| 2005 | 1369 |
| 2006 | 1560 |
| 2007 | 1857 |
| 2008 | 2150 |
| 2009 | 2344 |
| 2010 | 2705 |
| 2011 | 3058 |
| 2012 | 3538 |
| 2013 | 3727 |
| 2014 | 3995 |
| 2015 | 4263 |
| 2016 | 4160 |
| 2017 | 4343 |
| 2018 | 4374 |
| 2019 | 4565 |
| 2020 | 5297 |
| 2021 | 5668 |
| 2022 | 5295 |
| 2023 | 2429 |