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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1961 | 2 |
| 1979 | 1 |
| 1987 | 1 |
| 1988 | 4 |
| 1989 | 21 |
| 1990 | 38 |
| 1991 | 57 |
| 1992 | 73 |
| 1993 | 90 |
| 1994 | 72 |
| 1995 | 68 |
| 1996 | 64 |
| 1997 | 93 |
| 1998 | 104 |
| 1999 | 101 |
| 2000 | 92 |
| 2001 | 70 |
| 2002 | 124 |
| 2003 | 158 |
| 2004 | 139 |
| 2005 | 177 |
| 2006 | 189 |
| 2007 | 211 |
| 2008 | 241 |
| 2009 | 262 |
| 2010 | 293 |
| 2011 | 417 |
| 2012 | 439 |
| 2013 | 577 |
| 2014 | 488 |
| 2015 | 424 |
| 2016 | 413 |
| 2017 | 360 |
| 2018 | 342 |
| 2019 | 353 |
| 2020 | 296 |
| 2021 | 217 |
| 2022 | 69 |
| 2023 | 46 |
| 2024 | 57 |