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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1879 | 1 |
| 1881 | 3 |
| 1885 | 1 |
| 1888 | 1 |
| 1889 | 2 |
| 1891 | 1 |
| 1892 | 1 |
| 1893 | 2 |
| 1894 | 1 |
| 1896 | 1 |
| 1897 | 2 |
| 1898 | 1 |
| 1899 | 2 |
| 1900 | 1 |
| 1901 | 1 |
| 1904 | 2 |
| 1905 | 2 |
| 1906 | 1 |
| 1908 | 6 |
| 1909 | 7 |
| 1911 | 1 |
| 1913 | 1 |
| 1914 | 3 |
| 1915 | 2 |
| 1922 | 1 |
| 1966 | 1 |
| 1975 | 1 |
| 1980 | 1 |
| 1985 | 8 |
| 1986 | 10 |
| 1987 | 12 |
| 1988 | 8 |
| 1989 | 8 |
| 1990 | 6 |
| 1991 | 3 |
| 1993 | 6 |
| 1998 | 1 |
| 2000 | 1 |
| 2001 | 1 |
| 2003 | 4 |
| 2004 | 8 |
| 2005 | 6 |
| 2006 | 6 |
| 2007 | 8 |
| 2008 | 11 |
| 2009 | 8 |
| 2010 | 6 |
| 2011 | 9 |
| 2012 | 11 |
| 2013 | 6 |
| 2014 | 9 |
| 2015 | 4 |
| 2016 | 9 |
| 2017 | 8 |
| 2018 | 21 |
| 2019 | 11 |
| 2020 | 10 |
| 2021 | 10 |
| 2022 | 11 |
| 2023 | 11 |