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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 3 |
| 1988 | 1 |
| 1991 | 2 |
| 1992 | 1 |
| 1993 | 1 |
| 1994 | 2 |
| 1995 | 3 |
| 1996 | 3 |
| 1997 | 2 |
| 1998 | 1 |
| 1999 | 2 |
| 2000 | 8 |
| 2001 | 14 |
| 2002 | 16 |
| 2003 | 24 |
| 2004 | 25 |
| 2005 | 24 |
| 2006 | 24 |
| 2007 | 36 |
| 2008 | 29 |
| 2009 | 27 |
| 2010 | 43 |
| 2011 | 39 |
| 2012 | 44 |
| 2013 | 53 |
| 2014 | 54 |
| 2015 | 68 |
| 2016 | 83 |
| 2017 | 70 |
| 2018 | 69 |
| 2019 | 71 |
| 2020 | 97 |
| 2021 | 96 |
| 2022 | 73 |
| 2023 | 5 |