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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 7 |
| 1966 | 16 |
| 1967 | 24 |
| 1968 | 17 |
| 1969 | 15 |
| 1970 | 32 |
| 1971 | 72 |
| 1972 | 71 |
| 1973 | 73 |
| 1974 | 48 |
| 1975 | 84 |
| 1976 | 72 |
| 1977 | 80 |
| 1978 | 83 |
| 1979 | 78 |
| 1980 | 77 |
| 1981 | 105 |
| 1982 | 100 |
| 1983 | 108 |
| 1984 | 129 |
| 1985 | 132 |
| 1986 | 177 |
| 1987 | 184 |
| 1988 | 163 |
| 1989 | 196 |
| 1990 | 242 |
| 1991 | 271 |
| 1992 | 257 |
| 1993 | 267 |
| 1994 | 221 |
| 1995 | 211 |
| 1996 | 206 |
| 1997 | 196 |
| 1998 | 234 |
| 1999 | 198 |
| 2000 | 269 |
| 2001 | 262 |
| 2002 | 241 |
| 2003 | 297 |
| 2004 | 332 |
| 2005 | 378 |
| 2006 | 364 |
| 2007 | 412 |
| 2008 | 483 |
| 2009 | 501 |
| 2010 | 528 |
| 2011 | 517 |
| 2012 | 527 |
| 2013 | 618 |
| 2014 | 578 |
| 2015 | 610 |
| 2016 | 542 |
| 2017 | 541 |
| 2018 | 520 |
| 2019 | 574 |
| 2020 | 579 |
| 2021 | 559 |
| 2022 | 458 |
| 2023 | 364 |
| 2024 | 128 |