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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1874 | 1 |
| 1875 | 1 |
| 1876 | 1 |
| 1880 | 1 |
| 1881 | 2 |
| 1885 | 1 |
| 1892 | 1 |
| 1893 | 1 |
| 1896 | 1 |
| 1897 | 2 |
| 1898 | 3 |
| 1900 | 2 |
| 1906 | 1 |
| 1907 | 1 |
| 1908 | 1 |
| 1909 | 1 |
| 1912 | 1 |
| 1914 | 1 |
| 1917 | 1 |
| 1919 | 1 |
| 1920 | 1 |
| 1921 | 1 |
| 1927 | 1 |
| 1944 | 1 |
| 1963 | 4 |
| 1964 | 2 |
| 1965 | 4 |
| 1967 | 3 |
| 1968 | 1 |
| 1971 | 1 |
| 1972 | 5 |
| 1976 | 1 |
| 1977 | 4 |
| 1978 | 1 |
| 1979 | 1 |
| 1980 | 2 |
| 1982 | 2 |
| 1984 | 3 |
| 1985 | 4 |
| 1986 | 1 |
| 1987 | 1 |
| 1990 | 2 |
| 1991 | 1 |
| 1992 | 3 |
| 1994 | 3 |
| 1995 | 3 |
| 1996 | 4 |
| 1997 | 3 |
| 1998 | 3 |
| 1999 | 1 |
| 2000 | 1 |
| 2001 | 3 |
| 2002 | 1 |
| 2003 | 1 |
| 2004 | 1 |
| 2005 | 2 |
| 2006 | 1 |
| 2008 | 4 |
| 2009 | 3 |
| 2010 | 1 |
| 2012 | 4 |
| 2013 | 2 |
| 2014 | 1 |
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 4 |
| 2020 | 4 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 0 |