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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 3 |
| 1965 | 26 |
| 1966 | 82 |
| 1967 | 139 |
| 1968 | 153 |
| 1969 | 175 |
| 1970 | 181 |
| 1971 | 213 |
| 1972 | 233 |
| 1973 | 301 |
| 1974 | 354 |
| 1975 | 358 |
| 1976 | 362 |
| 1977 | 410 |
| 1978 | 401 |
| 1979 | 498 |
| 1980 | 446 |
| 1981 | 444 |
| 1982 | 457 |
| 1983 | 517 |
| 1984 | 469 |
| 1985 | 540 |
| 1986 | 499 |
| 1987 | 453 |
| 1988 | 447 |
| 1989 | 492 |
| 1990 | 522 |
| 1991 | 458 |
| 1992 | 453 |
| 1993 | 462 |
| 1994 | 460 |
| 1995 | 462 |
| 1996 | 472 |
| 1997 | 489 |
| 1998 | 484 |
| 1999 | 515 |
| 2000 | 527 |
| 2001 | 507 |
| 2002 | 515 |
| 2003 | 548 |
| 2004 | 468 |
| 2005 | 517 |
| 2006 | 604 |
| 2007 | 570 |
| 2008 | 566 |
| 2009 | 556 |
| 2010 | 595 |
| 2011 | 601 |
| 2012 | 609 |
| 2013 | 587 |
| 2014 | 594 |
| 2015 | 570 |
| 2016 | 541 |
| 2017 | 488 |
| 2018 | 452 |
| 2019 | 372 |
| 2020 | 379 |
| 2021 | 248 |
| 2022 | 76 |
| 2023 | 39 |
| 2024 | 160 |
| 2025 | 1 |