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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 26 |
| 1973 | 29 |
| 1974 | 38 |
| 1975 | 26 |
| 1976 | 25 |
| 1978 | 34 |
| 1979 | 29 |
| 1980 | 23 |
| 1981 | 34 |
| 1982 | 17 |
| 1983 | 20 |
| 1984 | 50 |
| 1985 | 18 |
| 1986 | 43 |
| 1987 | 24 |
| 1988 | 38 |
| 1989 | 92 |
| 1990 | 47 |
| 1991 | 54 |
| 1992 | 51 |
| 1993 | 54 |
| 1994 | 70 |
| 1995 | 59 |
| 1996 | 85 |
| 1997 | 95 |
| 1998 | 122 |
| 1999 | 110 |
| 2000 | 181 |
| 2001 | 182 |
| 2002 | 179 |
| 2003 | 179 |
| 2004 | 199 |
| 2005 | 268 |
| 2006 | 309 |
| 2007 | 419 |
| 2008 | 406 |
| 2009 | 411 |
| 2010 | 427 |
| 2011 | 529 |
| 2012 | 545 |
| 2013 | 534 |
| 2014 | 520 |
| 2015 | 466 |
| 2016 | 438 |
| 2017 | 476 |
| 2018 | 492 |
| 2019 | 554 |
| 2020 | 575 |
| 2021 | 585 |
| 2022 | 421 |
| 2023 | 408 |
| 2024 | 180 |