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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1960 | 1 |
| 1978 | 1 |
| 1981 | 1 |
| 1983 | 2 |
| 1985 | 1 |
| 1986 | 1 |
| 1988 | 1 |
| 1989 | 1 |
| 1990 | 1 |
| 1994 | 2 |
| 1996 | 2 |
| 1997 | 2 |
| 1998 | 1 |
| 1999 | 3 |
| 2001 | 3 |
| 2002 | 13 |
| 2003 | 11 |
| 2004 | 22 |
| 2005 | 25 |
| 2006 | 25 |
| 2007 | 23 |
| 2008 | 31 |
| 2009 | 38 |
| 2010 | 38 |
| 2011 | 45 |
| 2012 | 44 |
| 2013 | 64 |
| 2014 | 56 |
| 2015 | 53 |
| 2016 | 70 |
| 2017 | 60 |
| 2018 | 67 |
| 2019 | 92 |
| 2020 | 77 |
| 2021 | 76 |
| 2022 | 73 |
| 2023 | 99 |
| 2024 | 77 |