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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1970 | 1 |
| 1977 | 2 |
| 1980 | 1 |
| 1981 | 1 |
| 1985 | 1 |
| 1986 | 2 |
| 1987 | 6 |
| 1988 | 54 |
| 1989 | 146 |
| 1990 | 168 |
| 1991 | 152 |
| 1992 | 162 |
| 1993 | 173 |
| 1994 | 165 |
| 1995 | 165 |
| 1996 | 179 |
| 1997 | 138 |
| 1998 | 142 |
| 1999 | 146 |
| 2000 | 147 |
| 2001 | 150 |
| 2002 | 165 |
| 2003 | 148 |
| 2004 | 149 |
| 2005 | 165 |
| 2006 | 164 |
| 2007 | 193 |
| 2008 | 226 |
| 2009 | 295 |
| 2010 | 321 |
| 2011 | 317 |
| 2012 | 324 |
| 2013 | 311 |
| 2014 | 390 |
| 2015 | 467 |
| 2016 | 405 |
| 2017 | 413 |
| 2018 | 453 |
| 2019 | 465 |
| 2020 | 414 |
| 2021 | 359 |
| 2022 | 131 |
| 2023 | 90 |
| 2024 | 67 |