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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1968 | 1 |
| 1969 | 1 |
| 1973 | 1 |
| 1979 | 2 |
| 1980 | 1 |
| 1982 | 1 |
| 1983 | 1 |
| 1984 | 1 |
| 1987 | 2 |
| 1988 | 3 |
| 1989 | 6 |
| 1990 | 2 |
| 1991 | 13 |
| 1992 | 9 |
| 1993 | 14 |
| 1994 | 16 |
| 1995 | 20 |
| 1996 | 31 |
| 1997 | 19 |
| 1998 | 27 |
| 1999 | 27 |
| 2000 | 44 |
| 2001 | 53 |
| 2002 | 83 |
| 2003 | 101 |
| 2004 | 129 |
| 2005 | 138 |
| 2006 | 149 |
| 2007 | 195 |
| 2008 | 227 |
| 2009 | 234 |
| 2010 | 289 |
| 2011 | 301 |
| 2012 | 325 |
| 2013 | 370 |
| 2014 | 399 |
| 2015 | 434 |
| 2016 | 423 |
| 2017 | 422 |
| 2018 | 422 |
| 2019 | 459 |
| 2020 | 546 |
| 2021 | 539 |
| 2022 | 503 |
| 2023 | 512 |
| 2024 | 353 |