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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 1 |
| 1986 | 8 |
| 1987 | 51 |
| 1988 | 44 |
| 1989 | 79 |
| 1990 | 71 |
| 1991 | 77 |
| 1992 | 94 |
| 1993 | 94 |
| 1994 | 113 |
| 1995 | 147 |
| 1996 | 195 |
| 1997 | 250 |
| 1998 | 253 |
| 1999 | 428 |
| 2000 | 367 |
| 2001 | 314 |
| 2002 | 296 |
| 2003 | 326 |
| 2004 | 314 |
| 2005 | 398 |
| 2006 | 437 |
| 2007 | 405 |
| 2008 | 355 |
| 2009 | 337 |
| 2010 | 334 |
| 2011 | 346 |
| 2012 | 326 |
| 2013 | 345 |
| 2014 | 319 |
| 2015 | 357 |
| 2016 | 274 |
| 2017 | 306 |
| 2018 | 243 |
| 2019 | 272 |
| 2020 | 168 |
| 2021 | 316 |
| 2022 | 220 |
| 2023 | 36 |
| 2024 | 4 |