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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1970 | 1 |
| 1979 | 2 |
| 1985 | 2 |
| 1986 | 13 |
| 1987 | 33 |
| 1988 | 40 |
| 1989 | 56 |
| 1990 | 36 |
| 1991 | 55 |
| 1992 | 48 |
| 1993 | 50 |
| 1994 | 72 |
| 1995 | 53 |
| 1996 | 36 |
| 1997 | 58 |
| 1998 | 67 |
| 1999 | 43 |
| 2000 | 41 |
| 2001 | 55 |
| 2002 | 90 |
| 2003 | 182 |
| 2004 | 279 |
| 2005 | 434 |
| 2006 | 501 |
| 2007 | 538 |
| 2008 | 540 |
| 2009 | 674 |
| 2010 | 621 |
| 2011 | 536 |
| 2012 | 624 |
| 2013 | 712 |
| 2014 | 684 |
| 2015 | 644 |
| 2016 | 455 |
| 2017 | 381 |
| 2018 | 446 |
| 2019 | 442 |
| 2020 | 425 |
| 2021 | 302 |
| 2022 | 88 |
| 2023 | 27 |
| 2024 | 15 |