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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 1 |
| 1972 | 1 |
| 1975 | 1 |
| 1976 | 3 |
| 1977 | 1 |
| 1978 | 1 |
| 1979 | 2 |
| 1981 | 4 |
| 1982 | 1 |
| 1983 | 2 |
| 1984 | 8 |
| 1985 | 2 |
| 1986 | 7 |
| 1987 | 3 |
| 1988 | 5 |
| 1989 | 8 |
| 1990 | 8 |
| 1991 | 5 |
| 1992 | 8 |
| 1993 | 17 |
| 1994 | 15 |
| 1995 | 16 |
| 1996 | 16 |
| 1997 | 19 |
| 1998 | 30 |
| 1999 | 24 |
| 2000 | 35 |
| 2001 | 35 |
| 2002 | 47 |
| 2003 | 75 |
| 2004 | 97 |
| 2005 | 105 |
| 2006 | 102 |
| 2007 | 136 |
| 2008 | 172 |
| 2009 | 170 |
| 2010 | 204 |
| 2011 | 266 |
| 2012 | 280 |
| 2013 | 288 |
| 2014 | 271 |
| 2015 | 328 |
| 2016 | 350 |
| 2017 | 359 |
| 2018 | 355 |
| 2019 | 350 |
| 2020 | 382 |
| 2021 | 444 |
| 2022 | 391 |
| 2023 | 387 |
| 2024 | 269 |