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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 9 |
| 1973 | 29 |
| 1974 | 58 |
| 1975 | 45 |
| 1976 | 107 |
| 1977 | 158 |
| 1978 | 148 |
| 1979 | 160 |
| 1980 | 110 |
| 1981 | 131 |
| 1982 | 112 |
| 1983 | 102 |
| 1984 | 116 |
| 1985 | 85 |
| 1986 | 102 |
| 1987 | 114 |
| 1988 | 127 |
| 1989 | 159 |
| 1990 | 143 |
| 1991 | 187 |
| 1992 | 190 |
| 1993 | 173 |
| 1994 | 183 |
| 1995 | 239 |
| 1996 | 294 |
| 1997 | 345 |
| 1998 | 403 |
| 1999 | 397 |
| 2000 | 468 |
| 2001 | 507 |
| 2002 | 472 |
| 2003 | 494 |
| 2004 | 520 |
| 2005 | 500 |
| 2006 | 447 |
| 2007 | 479 |
| 2008 | 493 |
| 2009 | 494 |
| 2010 | 498 |
| 2011 | 514 |
| 2012 | 463 |
| 2013 | 407 |
| 2014 | 407 |
| 2015 | 403 |
| 2016 | 368 |
| 2017 | 362 |
| 2018 | 295 |
| 2019 | 310 |
| 2020 | 343 |
| 2021 | 303 |
| 2022 | 292 |
| 2023 | 268 |
| 2024 | 69 |