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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1968 | 1 |
| 1972 | 6 |
| 1974 | 9 |
| 1976 | 2 |
| 1977 | 43 |
| 1978 | 150 |
| 1979 | 158 |
| 1980 | 248 |
| 1981 | 227 |
| 1982 | 266 |
| 1983 | 240 |
| 1984 | 259 |
| 1985 | 289 |
| 1986 | 305 |
| 1987 | 341 |
| 1988 | 409 |
| 1989 | 517 |
| 1990 | 636 |
| 1991 | 554 |
| 1992 | 548 |
| 1993 | 573 |
| 1994 | 489 |
| 1995 | 526 |
| 1996 | 373 |
| 1997 | 425 |
| 1998 | 412 |
| 1999 | 448 |
| 2000 | 511 |
| 2001 | 489 |
| 2002 | 484 |
| 2003 | 612 |
| 2004 | 691 |
| 2005 | 837 |
| 2006 | 999 |
| 2007 | 952 |
| 2008 | 1172 |
| 2009 | 1312 |
| 2010 | 1593 |
| 2011 | 1757 |
| 2012 | 1584 |
| 2013 | 1699 |
| 2014 | 1591 |
| 2015 | 1391 |
| 2016 | 1260 |
| 2017 | 1180 |
| 2018 | 1178 |
| 2019 | 1166 |
| 2020 | 1460 |
| 2021 | 1752 |
| 2022 | 1320 |
| 2023 | 801 |
| 2024 | 413 |