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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1969 | 2 |
| 1970 | 1 |
| 1971 | 3 |
| 1972 | 1 |
| 1975 | 1 |
| 1976 | 5 |
| 1977 | 1 |
| 1979 | 3 |
| 1980 | 2 |
| 1981 | 3 |
| 1982 | 2 |
| 1983 | 2 |
| 1985 | 5 |
| 1986 | 4 |
| 1987 | 6 |
| 1988 | 5 |
| 1989 | 12 |
| 1990 | 10 |
| 1991 | 2 |
| 1992 | 12 |
| 1993 | 15 |
| 1994 | 12 |
| 1995 | 10 |
| 1996 | 22 |
| 1997 | 25 |
| 1998 | 30 |
| 1999 | 27 |
| 2000 | 55 |
| 2001 | 80 |
| 2002 | 91 |
| 2003 | 88 |
| 2004 | 121 |
| 2005 | 162 |
| 2006 | 186 |
| 2007 | 198 |
| 2008 | 285 |
| 2009 | 307 |
| 2010 | 338 |
| 2011 | 345 |
| 2012 | 419 |
| 2013 | 449 |
| 2014 | 435 |
| 2015 | 440 |
| 2016 | 501 |
| 2017 | 452 |
| 2018 | 446 |
| 2019 | 482 |
| 2020 | 572 |
| 2021 | 610 |
| 2022 | 621 |
| 2023 | 449 |