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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 1 |
| 1977 | 2 |
| 1978 | 7 |
| 1979 | 3 |
| 1980 | 13 |
| 1981 | 8 |
| 1982 | 24 |
| 1983 | 29 |
| 1984 | 32 |
| 1985 | 48 |
| 1986 | 43 |
| 1987 | 54 |
| 1988 | 63 |
| 1989 | 101 |
| 1990 | 100 |
| 1991 | 126 |
| 1992 | 152 |
| 1993 | 179 |
| 1994 | 171 |
| 1995 | 207 |
| 1996 | 167 |
| 1997 | 222 |
| 1998 | 263 |
| 1999 | 256 |
| 2000 | 374 |
| 2001 | 279 |
| 2002 | 302 |
| 2003 | 301 |
| 2004 | 340 |
| 2005 | 327 |
| 2006 | 379 |
| 2007 | 376 |
| 2008 | 427 |
| 2009 | 487 |
| 2010 | 505 |
| 2011 | 524 |
| 2012 | 535 |
| 2013 | 576 |
| 2014 | 548 |
| 2015 | 514 |
| 2016 | 498 |
| 2017 | 518 |
| 2018 | 541 |
| 2019 | 491 |
| 2020 | 587 |
| 2021 | 552 |
| 2022 | 430 |
| 2023 | 380 |
| 2024 | 119 |