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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1907 | 7 |
| 1908 | 9 |
| 1909 | 8 |
| 1910 | 9 |
| 1911 | 7 |
| 1912 | 7 |
| 1913 | 9 |
| 1914 | 9 |
| 1915 | 8 |
| 1916 | 9 |
| 1917 | 8 |
| 1918 | 5 |
| 1919 | 1 |
| 1929 | 1 |
| 1930 | 4 |
| 1931 | 1 |
| 1969 | 1 |
| 1978 | 1 |
| 1989 | 1 |
| 1990 | 2 |
| 1991 | 2 |
| 1992 | 1 |
| 1993 | 3 |
| 1994 | 1 |
| 1995 | 1 |
| 1997 | 2 |
| 1998 | 4 |
| 1999 | 1 |
| 2000 | 1 |
| 2001 | 1 |
| 2002 | 1 |
| 2004 | 1 |
| 2005 | 1 |
| 2006 | 2 |
| 2007 | 1 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 1 |
| 2011 | 1 |
| 2012 | 3 |
| 2013 | 2 |
| 2014 | 5 |
| 2015 | 8 |
| 2016 | 6 |
| 2017 | 6 |
| 2018 | 1 |
| 2024 | 0 |