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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1917 | 1 |
| 1918 | 1 |
| 1943 | 1 |
| 1944 | 1 |
| 1951 | 1 |
| 1955 | 3 |
| 1958 | 1 |
| 1960 | 1 |
| 1987 | 1 |
| 1989 | 3 |
| 1990 | 2 |
| 1992 | 1 |
| 1993 | 1 |
| 1995 | 1 |
| 1996 | 2 |
| 1997 | 1 |
| 1998 | 2 |
| 1999 | 2 |
| 2000 | 2 |
| 2001 | 1 |
| 2002 | 1 |
| 2004 | 7 |
| 2005 | 11 |
| 2006 | 8 |
| 2007 | 17 |
| 2008 | 22 |
| 2009 | 37 |
| 2010 | 40 |
| 2011 | 50 |
| 2012 | 68 |
| 2013 | 60 |
| 2014 | 81 |
| 2015 | 67 |
| 2016 | 66 |
| 2017 | 44 |
| 2018 | 58 |
| 2019 | 43 |
| 2020 | 47 |
| 2021 | 32 |
| 2022 | 30 |
| 2023 | 13 |
| 2024 | 0 |