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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 2 |
| 1967 | 1 |
| 1974 | 1 |
| 1975 | 1 |
| 1978 | 1 |
| 1979 | 11 |
| 1980 | 21 |
| 1981 | 50 |
| 1982 | 31 |
| 1983 | 31 |
| 1984 | 46 |
| 1985 | 29 |
| 1986 | 45 |
| 1987 | 40 |
| 1988 | 37 |
| 1989 | 59 |
| 1990 | 58 |
| 1991 | 54 |
| 1992 | 113 |
| 1993 | 106 |
| 1994 | 126 |
| 1995 | 113 |
| 1996 | 82 |
| 1997 | 155 |
| 1998 | 202 |
| 1999 | 191 |
| 2000 | 286 |
| 2001 | 336 |
| 2002 | 325 |
| 2003 | 312 |
| 2004 | 270 |
| 2005 | 334 |
| 2006 | 351 |
| 2007 | 322 |
| 2008 | 327 |
| 2009 | 364 |
| 2010 | 345 |
| 2011 | 365 |
| 2012 | 352 |
| 2013 | 419 |
| 2014 | 411 |
| 2015 | 389 |
| 2016 | 296 |
| 2017 | 287 |
| 2018 | 300 |
| 2019 | 298 |
| 2020 | 337 |
| 2021 | 207 |
| 2022 | 26 |
| 2023 | 25 |
| 2024 | 57 |