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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1967 | 2 |
| 1974 | 1 |
| 1975 | 2 |
| 1976 | 3 |
| 1978 | 1 |
| 1980 | 2 |
| 1981 | 10 |
| 1982 | 8 |
| 1983 | 8 |
| 1984 | 5 |
| 1985 | 9 |
| 1986 | 12 |
| 1987 | 18 |
| 1988 | 9 |
| 1989 | 11 |
| 1990 | 25 |
| 1991 | 17 |
| 1992 | 15 |
| 1993 | 48 |
| 1994 | 99 |
| 1995 | 77 |
| 1996 | 85 |
| 1997 | 74 |
| 1998 | 73 |
| 1999 | 114 |
| 2000 | 74 |
| 2001 | 104 |
| 2002 | 213 |
| 2003 | 303 |
| 2004 | 240 |
| 2005 | 298 |
| 2006 | 492 |
| 2007 | 422 |
| 2008 | 566 |
| 2009 | 592 |
| 2010 | 690 |
| 2011 | 683 |
| 2012 | 764 |
| 2013 | 792 |
| 2014 | 801 |
| 2015 | 777 |
| 2016 | 650 |
| 2017 | 674 |
| 2018 | 607 |
| 2019 | 535 |
| 2020 | 452 |
| 2021 | 266 |
| 2022 | 98 |
| 2023 | 94 |
| 2024 | 39 |