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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1887 | 1 |
| 1891 | 1 |
| 1901 | 1 |
| 1908 | 12 |
| 1909 | 19 |
| 1910 | 18 |
| 1912 | 7 |
| 1913 | 8 |
| 1914 | 2 |
| 1915 | 3 |
| 1917 | 2 |
| 1918 | 8 |
| 1919 | 8 |
| 1920 | 14 |
| 1950 | 1 |
| 1952 | 1 |
| 1957 | 1 |
| 1965 | 1 |
| 1970 | 2 |
| 1971 | 1 |
| 1972 | 3 |
| 1974 | 1 |
| 1975 | 2 |
| 1976 | 1 |
| 1981 | 1 |
| 1982 | 1 |
| 1983 | 1 |
| 1988 | 1 |
| 1989 | 1 |
| 1992 | 1 |
| 1993 | 2 |
| 1997 | 1 |
| 1999 | 3 |
| 2000 | 2 |
| 2001 | 3 |
| 2002 | 4 |
| 2004 | 2 |
| 2005 | 3 |
| 2006 | 8 |
| 2007 | 4 |
| 2008 | 5 |
| 2009 | 12 |
| 2010 | 12 |
| 2011 | 14 |
| 2012 | 14 |
| 2013 | 9 |
| 2014 | 13 |
| 2015 | 25 |
| 2016 | 12 |
| 2017 | 8 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 1 |
| 2023 | 3 |