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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 1 |
| 1968 | 3 |
| 1969 | 1 |
| 1972 | 1 |
| 1973 | 3 |
| 1974 | 7 |
| 1975 | 3 |
| 1976 | 33 |
| 1977 | 154 |
| 1978 | 214 |
| 1979 | 262 |
| 1980 | 337 |
| 1981 | 363 |
| 1982 | 456 |
| 1983 | 513 |
| 1984 | 553 |
| 1985 | 597 |
| 1986 | 620 |
| 1987 | 645 |
| 1988 | 701 |
| 1989 | 747 |
| 1990 | 683 |
| 1991 | 645 |
| 1992 | 609 |
| 1993 | 640 |
| 1994 | 558 |
| 1995 | 575 |
| 1996 | 522 |
| 1997 | 593 |
| 1998 | 566 |
| 1999 | 648 |
| 2000 | 628 |
| 2001 | 567 |
| 2002 | 543 |
| 2003 | 540 |
| 2004 | 581 |
| 2005 | 550 |
| 2006 | 598 |
| 2007 | 565 |
| 2008 | 540 |
| 2009 | 469 |
| 2010 | 505 |
| 2011 | 566 |
| 2012 | 532 |
| 2013 | 512 |
| 2014 | 495 |
| 2015 | 436 |
| 2016 | 389 |
| 2017 | 354 |
| 2018 | 348 |
| 2019 | 338 |
| 2020 | 275 |
| 2021 | 228 |
| 2022 | 83 |
| 2023 | 58 |
| 2024 | 161 |
| 2025 | 124 |