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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1967 | 3 |
| 1968 | 9 |
| 1969 | 15 |
| 1970 | 38 |
| 1971 | 99 |
| 1972 | 199 |
| 1973 | 285 |
| 1974 | 406 |
| 1975 | 282 |
| 1976 | 296 |
| 1977 | 273 |
| 1978 | 286 |
| 1979 | 338 |
| 1980 | 302 |
| 1981 | 294 |
| 1982 | 293 |
| 1983 | 364 |
| 1984 | 312 |
| 1985 | 315 |
| 1986 | 357 |
| 1987 | 363 |
| 1988 | 348 |
| 1989 | 433 |
| 1990 | 368 |
| 1991 | 444 |
| 1992 | 414 |
| 1993 | 408 |
| 1994 | 372 |
| 1995 | 419 |
| 1996 | 396 |
| 1997 | 395 |
| 1998 | 471 |
| 1999 | 440 |
| 2000 | 466 |
| 2001 | 542 |
| 2002 | 532 |
| 2003 | 540 |
| 2004 | 579 |
| 2005 | 594 |
| 2006 | 609 |
| 2007 | 555 |
| 2008 | 567 |
| 2009 | 627 |
| 2010 | 567 |
| 2011 | 545 |
| 2012 | 554 |
| 2013 | 571 |
| 2014 | 529 |
| 2015 | 533 |
| 2016 | 516 |
| 2017 | 477 |
| 2018 | 417 |
| 2019 | 419 |
| 2020 | 386 |
| 2021 | 236 |
| 2022 | 306 |
| 2023 | 234 |
| 2024 | 320 |
| 2025 | 184 |