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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 4 |
| 1965 | 53 |
| 1966 | 59 |
| 1967 | 79 |
| 1968 | 107 |
| 1969 | 119 |
| 1970 | 141 |
| 1971 | 193 |
| 1972 | 267 |
| 1973 | 297 |
| 1974 | 374 |
| 1975 | 372 |
| 1976 | 381 |
| 1977 | 376 |
| 1978 | 465 |
| 1979 | 511 |
| 1980 | 564 |
| 1981 | 508 |
| 1982 | 581 |
| 1983 | 611 |
| 1984 | 683 |
| 1985 | 580 |
| 1986 | 580 |
| 1987 | 589 |
| 1988 | 572 |
| 1989 | 590 |
| 1990 | 575 |
| 1991 | 617 |
| 1992 | 521 |
| 1993 | 475 |
| 1994 | 539 |
| 1995 | 499 |
| 1996 | 493 |
| 1997 | 465 |
| 1998 | 459 |
| 1999 | 541 |
| 2000 | 621 |
| 2001 | 509 |
| 2002 | 554 |
| 2003 | 561 |
| 2004 | 553 |
| 2005 | 531 |
| 2006 | 579 |
| 2007 | 553 |
| 2008 | 544 |
| 2009 | 549 |
| 2010 | 544 |
| 2011 | 671 |
| 2012 | 587 |
| 2013 | 562 |
| 2014 | 540 |
| 2015 | 524 |
| 2016 | 482 |
| 2017 | 498 |
| 2018 | 543 |
| 2019 | 555 |
| 2020 | 476 |
| 2021 | 464 |
| 2022 | 419 |
| 2023 | 267 |
| 2024 | 89 |