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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 90 |
| 1973 | 102 |
| 1974 | 97 |
| 1975 | 91 |
| 1976 | 97 |
| 1977 | 97 |
| 1978 | 132 |
| 1979 | 155 |
| 1980 | 167 |
| 1981 | 179 |
| 1982 | 194 |
| 1983 | 194 |
| 1984 | 193 |
| 1985 | 191 |
| 1986 | 240 |
| 1987 | 251 |
| 1988 | 212 |
| 1989 | 279 |
| 1990 | 293 |
| 1991 | 286 |
| 1992 | 379 |
| 1993 | 334 |
| 1994 | 425 |
| 1995 | 425 |
| 1996 | 486 |
| 1997 | 442 |
| 1998 | 490 |
| 1999 | 563 |
| 2000 | 616 |
| 2001 | 573 |
| 2002 | 573 |
| 2003 | 588 |
| 2004 | 630 |
| 2005 | 667 |
| 2006 | 790 |
| 2007 | 586 |
| 2008 | 598 |
| 2009 | 522 |
| 2010 | 501 |
| 2011 | 480 |
| 2012 | 462 |
| 2013 | 531 |
| 2014 | 550 |
| 2015 | 463 |
| 2016 | 489 |
| 2017 | 487 |
| 2018 | 422 |
| 2019 | 485 |
| 2020 | 556 |
| 2021 | 536 |
| 2022 | 458 |
| 2023 | 403 |
| 2024 | 404 |
| 2025 | 426 |
| 2026 | 196 |
| 2027 | 3 |
| 2028 | 1 |