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Results by year
Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results | 
|---|---|
| 1968 | 1 | 
| 1973 | 1 | 
| 1974 | 1 | 
| 1975 | 3 | 
| 1976 | 2 | 
| 1978 | 1 | 
| 1985 | 1 | 
| 1986 | 1 | 
| 1987 | 2 | 
| 1996 | 1 | 
| 1997 | 1 | 
| 1998 | 1 | 
| 2000 | 3 | 
| 2001 | 1 | 
| 2002 | 2 | 
| 2003 | 4 | 
| 2004 | 6 | 
| 2005 | 4 | 
| 2006 | 6 | 
| 2007 | 5 | 
| 2008 | 4 | 
| 2009 | 6 | 
| 2010 | 10 | 
| 2011 | 16 | 
| 2012 | 11 | 
| 2013 | 16 | 
| 2014 | 11 | 
| 2015 | 19 | 
| 2016 | 14 | 
| 2017 | 15 | 
| 2018 | 16 | 
| 2019 | 21 | 
| 2020 | 21 | 
| 2021 | 21 | 
| 2022 | 18 | 
| 2023 | 23 | 
| 2024 | 22 | 
| 2025 | 11 | 
