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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 1 |
| 1967 | 1 |
| 1970 | 1 |
| 1972 | 4 |
| 1973 | 5 |
| 1974 | 21 |
| 1975 | 36 |
| 1976 | 32 |
| 1977 | 35 |
| 1978 | 27 |
| 1979 | 30 |
| 1980 | 23 |
| 1981 | 30 |
| 1982 | 32 |
| 1983 | 49 |
| 1984 | 43 |
| 1985 | 55 |
| 1986 | 61 |
| 1987 | 71 |
| 1988 | 85 |
| 1989 | 97 |
| 1990 | 224 |
| 1991 | 203 |
| 1992 | 190 |
| 1993 | 168 |
| 1994 | 166 |
| 1995 | 164 |
| 1996 | 173 |
| 1997 | 195 |
| 1998 | 180 |
| 1999 | 242 |
| 2000 | 188 |
| 2001 | 266 |
| 2002 | 223 |
| 2003 | 235 |
| 2004 | 283 |
| 2005 | 302 |
| 2006 | 357 |
| 2007 | 349 |
| 2008 | 384 |
| 2009 | 441 |
| 2010 | 488 |
| 2011 | 517 |
| 2012 | 525 |
| 2013 | 497 |
| 2014 | 525 |
| 2015 | 592 |
| 2016 | 583 |
| 2017 | 575 |
| 2018 | 650 |
| 2019 | 614 |
| 2020 | 765 |
| 2021 | 733 |
| 2022 | 549 |
| 2023 | 482 |
| 2024 | 723 |
| 2025 | 389 |