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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1968 | 1 |
| 1984 | 1 |
| 1988 | 3 |
| 1989 | 5 |
| 1990 | 3 |
| 1991 | 6 |
| 1992 | 6 |
| 1993 | 20 |
| 1994 | 27 |
| 1995 | 35 |
| 1996 | 37 |
| 1997 | 31 |
| 1998 | 40 |
| 1999 | 166 |
| 2000 | 54 |
| 2001 | 183 |
| 2002 | 114 |
| 2003 | 92 |
| 2004 | 104 |
| 2005 | 100 |
| 2006 | 118 |
| 2007 | 133 |
| 2008 | 177 |
| 2009 | 182 |
| 2010 | 236 |
| 2011 | 179 |
| 2012 | 172 |
| 2013 | 170 |
| 2014 | 168 |
| 2015 | 186 |
| 2016 | 173 |
| 2017 | 176 |
| 2018 | 157 |
| 2019 | 151 |
| 2020 | 135 |
| 2021 | 53 |
| 2022 | 22 |
| 2023 | 31 |
| 2024 | 5 |