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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1978 | 16 |
| 1979 | 43 |
| 1980 | 54 |
| 1981 | 45 |
| 1982 | 56 |
| 1983 | 58 |
| 1984 | 65 |
| 1985 | 48 |
| 1986 | 71 |
| 1987 | 71 |
| 1988 | 114 |
| 1989 | 94 |
| 1990 | 113 |
| 1991 | 83 |
| 1992 | 105 |
| 1993 | 113 |
| 1994 | 122 |
| 1995 | 148 |
| 1996 | 135 |
| 1997 | 147 |
| 1998 | 145 |
| 1999 | 144 |
| 2000 | 213 |
| 2001 | 355 |
| 2002 | 240 |
| 2003 | 267 |
| 2004 | 371 |
| 2005 | 529 |
| 2006 | 589 |
| 2007 | 508 |
| 2008 | 352 |
| 2009 | 321 |
| 2010 | 459 |
| 2011 | 589 |
| 2012 | 543 |
| 2013 | 476 |
| 2014 | 480 |
| 2015 | 453 |
| 2016 | 522 |
| 2017 | 500 |
| 2018 | 541 |
| 2019 | 552 |
| 2020 | 471 |
| 2021 | 435 |
| 2022 | 295 |
| 2023 | 261 |
| 2024 | 135 |