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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 2 |
| 1972 | 1 |
| 1974 | 1 |
| 1976 | 1 |
| 1977 | 1 |
| 1983 | 1 |
| 1986 | 23 |
| 1987 | 141 |
| 1988 | 189 |
| 1989 | 330 |
| 1990 | 300 |
| 1991 | 329 |
| 1992 | 192 |
| 1993 | 199 |
| 1994 | 170 |
| 1995 | 210 |
| 1996 | 201 |
| 1997 | 306 |
| 1998 | 385 |
| 1999 | 385 |
| 2000 | 583 |
| 2001 | 773 |
| 2002 | 649 |
| 2003 | 638 |
| 2004 | 430 |
| 2005 | 366 |
| 2006 | 376 |
| 2007 | 382 |
| 2008 | 427 |
| 2009 | 334 |
| 2010 | 242 |
| 2011 | 209 |
| 2012 | 216 |
| 2013 | 154 |
| 2014 | 189 |
| 2015 | 254 |
| 2016 | 262 |
| 2017 | 214 |
| 2018 | 197 |
| 2019 | 255 |
| 2020 | 293 |
| 2021 | 197 |
| 2022 | 49 |
| 2023 | 5 |
| 2024 | 4 |