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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1971 | 1 |
| 1974 | 2 |
| 1975 | 4 |
| 1977 | 13 |
| 1978 | 13 |
| 1979 | 160 |
| 1980 | 459 |
| 1981 | 674 |
| 1982 | 1021 |
| 1983 | 1519 |
| 1984 | 1639 |
| 1985 | 1693 |
| 1986 | 1665 |
| 1987 | 1612 |
| 1988 | 1642 |
| 1989 | 1594 |
| 1990 | 2012 |
| 1991 | 2553 |
| 1992 | 2542 |
| 1993 | 2758 |
| 1994 | 2869 |
| 1995 | 2815 |
| 1996 | 2795 |
| 1997 | 3048 |
| 1998 | 3029 |
| 1999 | 3226 |
| 2000 | 3461 |
| 2001 | 3610 |
| 2002 | 3506 |
| 2003 | 3624 |
| 2004 | 3670 |
| 2005 | 3816 |
| 2006 | 4022 |
| 2007 | 4438 |
| 2008 | 4854 |
| 2009 | 5138 |
| 2010 | 5203 |
| 2011 | 5603 |
| 2012 | 5377 |
| 2013 | 5634 |
| 2014 | 5726 |
| 2015 | 5879 |
| 2016 | 5632 |
| 2017 | 5308 |
| 2018 | 5468 |
| 2019 | 5450 |
| 2020 | 5506 |
| 2021 | 5409 |
| 2022 | 3735 |
| 2023 | 2911 |
| 2024 | 899 |