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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1967 | 1 |
| 1971 | 1 |
| 1981 | 2 |
| 1985 | 2 |
| 1987 | 5 |
| 1988 | 2 |
| 1993 | 1 |
| 1994 | 15 |
| 1995 | 41 |
| 1996 | 42 |
| 1997 | 52 |
| 1998 | 41 |
| 1999 | 60 |
| 2000 | 82 |
| 2001 | 83 |
| 2002 | 82 |
| 2003 | 113 |
| 2004 | 126 |
| 2005 | 109 |
| 2006 | 119 |
| 2007 | 119 |
| 2008 | 106 |
| 2009 | 109 |
| 2010 | 90 |
| 2011 | 156 |
| 2012 | 129 |
| 2013 | 126 |
| 2014 | 129 |
| 2015 | 118 |
| 2016 | 137 |
| 2017 | 97 |
| 2018 | 105 |
| 2019 | 115 |
| 2020 | 119 |
| 2021 | 118 |
| 2022 | 48 |
| 2023 | 26 |
| 2024 | 17 |