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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 1 |
| 1972 | 1 |
| 1973 | 1 |
| 1974 | 3 |
| 1975 | 60 |
| 1976 | 34 |
| 1977 | 45 |
| 1978 | 64 |
| 1979 | 77 |
| 1980 | 121 |
| 1981 | 127 |
| 1982 | 164 |
| 1983 | 175 |
| 1984 | 227 |
| 1985 | 258 |
| 1986 | 303 |
| 1987 | 271 |
| 1988 | 312 |
| 1989 | 312 |
| 1990 | 382 |
| 1991 | 418 |
| 1992 | 490 |
| 1993 | 500 |
| 1994 | 607 |
| 1995 | 582 |
| 1996 | 605 |
| 1997 | 658 |
| 1998 | 575 |
| 1999 | 525 |
| 2000 | 589 |
| 2001 | 506 |
| 2002 | 485 |
| 2003 | 478 |
| 2004 | 510 |
| 2005 | 490 |
| 2006 | 471 |
| 2007 | 514 |
| 2008 | 493 |
| 2009 | 460 |
| 2010 | 517 |
| 2011 | 480 |
| 2012 | 518 |
| 2013 | 494 |
| 2014 | 493 |
| 2015 | 439 |
| 2016 | 387 |
| 2017 | 385 |
| 2018 | 343 |
| 2019 | 303 |
| 2020 | 264 |
| 2021 | 235 |
| 2022 | 234 |
| 2023 | 14 |