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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 3 |
| 1971 | 1 |
| 1972 | 2 |
| 1982 | 1 |
| 1984 | 3 |
| 1985 | 6 |
| 1987 | 4 |
| 1988 | 3 |
| 1989 | 9 |
| 1990 | 6 |
| 1991 | 12 |
| 1992 | 6 |
| 1993 | 14 |
| 1994 | 17 |
| 1995 | 28 |
| 1996 | 34 |
| 1997 | 31 |
| 1998 | 48 |
| 1999 | 49 |
| 2000 | 57 |
| 2001 | 71 |
| 2002 | 95 |
| 2003 | 108 |
| 2004 | 162 |
| 2005 | 177 |
| 2006 | 184 |
| 2007 | 248 |
| 2008 | 279 |
| 2009 | 337 |
| 2010 | 391 |
| 2011 | 449 |
| 2012 | 517 |
| 2013 | 590 |
| 2014 | 605 |
| 2015 | 708 |
| 2016 | 715 |
| 2017 | 667 |
| 2018 | 763 |
| 2019 | 761 |
| 2020 | 886 |
| 2021 | 960 |
| 2022 | 856 |
| 2023 | 810 |
| 2024 | 528 |