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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1965 | 34 |
| 1966 | 57 |
| 1967 | 77 |
| 1968 | 96 |
| 1969 | 133 |
| 1970 | 179 |
| 1971 | 192 |
| 1972 | 285 |
| 1973 | 387 |
| 1974 | 497 |
| 1975 | 501 |
| 1976 | 580 |
| 1977 | 554 |
| 1978 | 500 |
| 1979 | 562 |
| 1980 | 582 |
| 1981 | 483 |
| 1982 | 455 |
| 1983 | 417 |
| 1984 | 427 |
| 1985 | 521 |
| 1986 | 606 |
| 1987 | 637 |
| 1988 | 736 |
| 1989 | 916 |
| 1990 | 1414 |
| 1991 | 1671 |
| 1992 | 1978 |
| 1993 | 2362 |
| 1994 | 2485 |
| 1995 | 2739 |
| 1996 | 2898 |
| 1997 | 3017 |
| 1998 | 3148 |
| 1999 | 3381 |
| 2000 | 3856 |
| 2001 | 4157 |
| 2002 | 4708 |
| 2003 | 5535 |
| 2004 | 5975 |
| 2005 | 5493 |
| 2006 | 4710 |
| 2007 | 4794 |
| 2008 | 4927 |
| 2009 | 4950 |
| 2010 | 4973 |
| 2011 | 5756 |
| 2012 | 5579 |
| 2013 | 5711 |
| 2014 | 5160 |
| 2015 | 4908 |
| 2016 | 4345 |
| 2017 | 4089 |
| 2018 | 3653 |
| 2019 | 3686 |
| 2020 | 4153 |
| 2021 | 4243 |
| 2022 | 2538 |
| 2023 | 1609 |
| 2024 | 3886 |
| 2025 | 2580 |