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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1967 | 1 |
| 1970 | 4 |
| 1971 | 2 |
| 1973 | 5 |
| 1974 | 26 |
| 1975 | 178 |
| 1976 | 210 |
| 1977 | 199 |
| 1978 | 183 |
| 1979 | 245 |
| 1980 | 191 |
| 1981 | 196 |
| 1982 | 213 |
| 1983 | 200 |
| 1984 | 174 |
| 1985 | 220 |
| 1986 | 174 |
| 1987 | 157 |
| 1988 | 142 |
| 1989 | 158 |
| 1990 | 167 |
| 1991 | 169 |
| 1992 | 165 |
| 1993 | 192 |
| 1994 | 201 |
| 1995 | 186 |
| 1996 | 197 |
| 1997 | 258 |
| 1998 | 279 |
| 1999 | 263 |
| 2000 | 271 |
| 2001 | 251 |
| 2002 | 306 |
| 2003 | 285 |
| 2004 | 407 |
| 2005 | 408 |
| 2006 | 472 |
| 2007 | 485 |
| 2008 | 518 |
| 2009 | 484 |
| 2010 | 468 |
| 2011 | 503 |
| 2012 | 536 |
| 2013 | 539 |
| 2014 | 459 |
| 2015 | 482 |
| 2016 | 440 |
| 2017 | 464 |
| 2018 | 476 |
| 2019 | 446 |
| 2020 | 338 |
| 2021 | 200 |
| 2022 | 97 |
| 2023 | 106 |
| 2024 | 60 |