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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 1 |
| 1974 | 2 |
| 1975 | 3 |
| 1976 | 2 |
| 1977 | 2 |
| 1978 | 12 |
| 1979 | 21 |
| 1980 | 23 |
| 1981 | 15 |
| 1982 | 21 |
| 1983 | 27 |
| 1984 | 47 |
| 1985 | 58 |
| 1986 | 77 |
| 1987 | 94 |
| 1988 | 108 |
| 1989 | 89 |
| 1990 | 95 |
| 1991 | 93 |
| 1992 | 96 |
| 1993 | 171 |
| 1994 | 157 |
| 1995 | 181 |
| 1996 | 213 |
| 1997 | 190 |
| 1998 | 199 |
| 1999 | 214 |
| 2000 | 223 |
| 2001 | 247 |
| 2002 | 212 |
| 2003 | 212 |
| 2004 | 209 |
| 2005 | 236 |
| 2006 | 238 |
| 2007 | 265 |
| 2008 | 333 |
| 2009 | 384 |
| 2010 | 446 |
| 2011 | 491 |
| 2012 | 492 |
| 2013 | 548 |
| 2014 | 522 |
| 2015 | 493 |
| 2016 | 494 |
| 2017 | 443 |
| 2018 | 441 |
| 2019 | 393 |
| 2020 | 364 |
| 2021 | 277 |
| 2022 | 50 |
| 2023 | 18 |
| 2024 | 39 |