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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 1 |
| 1968 | 2 |
| 1969 | 1 |
| 1970 | 1 |
| 1976 | 3 |
| 1977 | 2 |
| 1978 | 1 |
| 1980 | 1 |
| 1985 | 1 |
| 1986 | 1 |
| 1987 | 1 |
| 1988 | 6 |
| 1989 | 3 |
| 1990 | 4 |
| 1991 | 2 |
| 1992 | 3 |
| 1993 | 6 |
| 1994 | 9 |
| 1995 | 7 |
| 1996 | 7 |
| 1997 | 20 |
| 1998 | 19 |
| 1999 | 34 |
| 2000 | 55 |
| 2001 | 65 |
| 2002 | 49 |
| 2003 | 83 |
| 2004 | 92 |
| 2005 | 115 |
| 2006 | 171 |
| 2007 | 202 |
| 2008 | 224 |
| 2009 | 268 |
| 2010 | 275 |
| 2011 | 343 |
| 2012 | 402 |
| 2013 | 433 |
| 2014 | 514 |
| 2015 | 517 |
| 2016 | 533 |
| 2017 | 508 |
| 2018 | 573 |
| 2019 | 592 |
| 2020 | 629 |
| 2021 | 675 |
| 2022 | 629 |
| 2023 | 159 |