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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1977 | 65 |
| 1978 | 124 |
| 1979 | 222 |
| 1980 | 240 |
| 1981 | 260 |
| 1982 | 278 |
| 1983 | 291 |
| 1984 | 309 |
| 1985 | 336 |
| 1986 | 340 |
| 1987 | 412 |
| 1988 | 378 |
| 1989 | 373 |
| 1990 | 378 |
| 1991 | 366 |
| 1992 | 383 |
| 1993 | 393 |
| 1994 | 392 |
| 1995 | 383 |
| 1996 | 384 |
| 1997 | 397 |
| 1998 | 414 |
| 1999 | 401 |
| 2000 | 408 |
| 2001 | 420 |
| 2002 | 464 |
| 2003 | 397 |
| 2004 | 389 |
| 2005 | 551 |
| 2006 | 544 |
| 2007 | 526 |
| 2008 | 664 |
| 2009 | 482 |
| 2010 | 683 |
| 2011 | 598 |
| 2012 | 552 |
| 2013 | 531 |
| 2014 | 421 |
| 2015 | 440 |
| 2016 | 370 |
| 2017 | 429 |
| 2018 | 439 |
| 2019 | 643 |
| 2020 | 713 |
| 2021 | 573 |
| 2022 | 565 |
| 2023 | 509 |