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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1968 | 6 |
| 1976 | 2 |
| 1982 | 1 |
| 1984 | 2 |
| 1988 | 6 |
| 1989 | 14 |
| 1990 | 77 |
| 1991 | 175 |
| 1992 | 301 |
| 1993 | 319 |
| 1994 | 347 |
| 1995 | 346 |
| 1996 | 411 |
| 1997 | 370 |
| 1998 | 593 |
| 1999 | 519 |
| 2000 | 388 |
| 2001 | 364 |
| 2002 | 286 |
| 2003 | 263 |
| 2004 | 336 |
| 2005 | 426 |
| 2006 | 421 |
| 2007 | 488 |
| 2008 | 425 |
| 2009 | 356 |
| 2010 | 364 |
| 2011 | 314 |
| 2012 | 287 |
| 2013 | 214 |
| 2014 | 115 |
| 2015 | 89 |
| 2016 | 57 |
| 2017 | 74 |
| 2018 | 86 |
| 2019 | 74 |
| 2020 | 76 |
| 2021 | 63 |
| 2022 | 5 |
| 2024 | 1 |