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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 5 |
| 1972 | 29 |
| 1973 | 103 |
| 1974 | 101 |
| 1975 | 158 |
| 1976 | 244 |
| 1977 | 242 |
| 1978 | 341 |
| 1979 | 399 |
| 1980 | 479 |
| 1981 | 564 |
| 1982 | 623 |
| 1983 | 669 |
| 1984 | 690 |
| 1985 | 715 |
| 1986 | 717 |
| 1987 | 678 |
| 1988 | 678 |
| 1989 | 661 |
| 1990 | 662 |
| 1991 | 592 |
| 1992 | 530 |
| 1993 | 599 |
| 1994 | 527 |
| 1995 | 518 |
| 1996 | 443 |
| 1997 | 486 |
| 1998 | 434 |
| 1999 | 429 |
| 2000 | 466 |
| 2001 | 400 |
| 2002 | 351 |
| 2003 | 396 |
| 2004 | 354 |
| 2005 | 396 |
| 2006 | 376 |
| 2007 | 395 |
| 2008 | 446 |
| 2009 | 428 |
| 2010 | 400 |
| 2011 | 437 |
| 2012 | 391 |
| 2013 | 400 |
| 2014 | 398 |
| 2015 | 377 |
| 2016 | 377 |
| 2017 | 405 |
| 2018 | 360 |
| 2019 | 359 |
| 2020 | 305 |
| 2021 | 227 |
| 2022 | 157 |
| 2023 | 31 |