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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1967 | 2 |
| 1968 | 1 |
| 1970 | 4 |
| 1971 | 3 |
| 1972 | 31 |
| 1973 | 67 |
| 1974 | 137 |
| 1975 | 201 |
| 1976 | 219 |
| 1977 | 272 |
| 1978 | 347 |
| 1979 | 363 |
| 1980 | 379 |
| 1981 | 436 |
| 1982 | 347 |
| 1983 | 421 |
| 1984 | 418 |
| 1985 | 633 |
| 1986 | 536 |
| 1987 | 422 |
| 1988 | 514 |
| 1989 | 303 |
| 1990 | 529 |
| 1991 | 739 |
| 1992 | 635 |
| 1993 | 620 |
| 1994 | 562 |
| 1995 | 600 |
| 1996 | 662 |
| 1997 | 756 |
| 1998 | 739 |
| 1999 | 729 |
| 2000 | 769 |
| 2001 | 823 |
| 2002 | 715 |
| 2003 | 745 |
| 2004 | 670 |
| 2005 | 716 |
| 2006 | 683 |
| 2007 | 736 |
| 2008 | 763 |
| 2009 | 792 |
| 2010 | 850 |
| 2011 | 1033 |
| 2012 | 1091 |
| 2013 | 1086 |
| 2014 | 1113 |
| 2015 | 1017 |
| 2016 | 956 |
| 2017 | 1080 |
| 2018 | 1095 |
| 2019 | 1042 |
| 2020 | 1011 |
| 2021 | 921 |
| 2022 | 689 |
| 2023 | 514 |
| 2024 | 385 |