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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1977 | 1 |
| 1979 | 2 |
| 1981 | 1 |
| 1983 | 2 |
| 1985 | 1 |
| 1986 | 7 |
| 1987 | 5 |
| 1988 | 13 |
| 1989 | 14 |
| 1990 | 20 |
| 1991 | 30 |
| 1992 | 36 |
| 1993 | 38 |
| 1994 | 44 |
| 1995 | 37 |
| 1996 | 42 |
| 1997 | 64 |
| 1998 | 59 |
| 1999 | 73 |
| 2000 | 95 |
| 2001 | 129 |
| 2002 | 106 |
| 2003 | 122 |
| 2004 | 132 |
| 2005 | 159 |
| 2006 | 203 |
| 2007 | 285 |
| 2008 | 400 |
| 2009 | 427 |
| 2010 | 468 |
| 2011 | 504 |
| 2012 | 502 |
| 2013 | 487 |
| 2014 | 443 |
| 2015 | 365 |
| 2016 | 303 |
| 2017 | 314 |
| 2018 | 244 |
| 2019 | 193 |
| 2020 | 171 |
| 2021 | 181 |
| 2022 | 127 |
| 2023 | 123 |
| 2024 | 54 |