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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1973 | 1 |
| 1976 | 1 |
| 1978 | 6 |
| 1979 | 7 |
| 1980 | 69 |
| 1981 | 157 |
| 1982 | 164 |
| 1983 | 208 |
| 1984 | 187 |
| 1985 | 186 |
| 1986 | 217 |
| 1987 | 216 |
| 1988 | 232 |
| 1989 | 217 |
| 1990 | 377 |
| 1991 | 434 |
| 1992 | 234 |
| 1993 | 255 |
| 1994 | 301 |
| 1995 | 353 |
| 1996 | 440 |
| 1997 | 379 |
| 1998 | 584 |
| 1999 | 610 |
| 2000 | 455 |
| 2001 | 362 |
| 2002 | 317 |
| 2003 | 395 |
| 2004 | 467 |
| 2005 | 554 |
| 2006 | 750 |
| 2007 | 776 |
| 2008 | 623 |
| 2009 | 497 |
| 2010 | 538 |
| 2011 | 491 |
| 2012 | 482 |
| 2013 | 456 |
| 2014 | 507 |
| 2015 | 579 |
| 2016 | 637 |
| 2017 | 674 |
| 2018 | 719 |
| 2019 | 690 |
| 2020 | 630 |
| 2021 | 288 |
| 2022 | 157 |
| 2023 | 123 |
| 2024 | 67 |