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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1967 | 9 |
| 1970 | 4 |
| 1975 | 2 |
| 1977 | 1 |
| 1985 | 1 |
| 1988 | 4 |
| 1989 | 27 |
| 1990 | 69 |
| 1991 | 92 |
| 1992 | 104 |
| 1993 | 119 |
| 1994 | 118 |
| 1995 | 87 |
| 1996 | 113 |
| 1997 | 125 |
| 1998 | 143 |
| 1999 | 169 |
| 2000 | 165 |
| 2001 | 222 |
| 2002 | 217 |
| 2003 | 248 |
| 2004 | 252 |
| 2005 | 427 |
| 2006 | 448 |
| 2007 | 500 |
| 2008 | 515 |
| 2009 | 567 |
| 2010 | 606 |
| 2011 | 636 |
| 2012 | 610 |
| 2013 | 600 |
| 2014 | 593 |
| 2015 | 666 |
| 2016 | 561 |
| 2017 | 540 |
| 2018 | 509 |
| 2019 | 628 |
| 2020 | 466 |
| 2021 | 271 |
| 2022 | 212 |
| 2023 | 180 |
| 2024 | 57 |