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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1960 | 3 |
| 1976 | 3 |
| 1978 | 1 |
| 1979 | 13 |
| 1980 | 27 |
| 1981 | 22 |
| 1982 | 26 |
| 1983 | 19 |
| 1984 | 15 |
| 1985 | 27 |
| 1986 | 28 |
| 1987 | 28 |
| 1988 | 35 |
| 1989 | 30 |
| 1990 | 42 |
| 1991 | 69 |
| 1992 | 83 |
| 1993 | 102 |
| 1994 | 104 |
| 1995 | 107 |
| 1996 | 82 |
| 1997 | 84 |
| 1998 | 147 |
| 1999 | 144 |
| 2000 | 202 |
| 2001 | 276 |
| 2002 | 321 |
| 2003 | 406 |
| 2004 | 364 |
| 2005 | 357 |
| 2006 | 346 |
| 2007 | 344 |
| 2008 | 323 |
| 2009 | 380 |
| 2010 | 394 |
| 2011 | 376 |
| 2012 | 415 |
| 2013 | 378 |
| 2014 | 336 |
| 2015 | 325 |
| 2016 | 309 |
| 2017 | 270 |
| 2018 | 220 |
| 2019 | 220 |
| 2020 | 182 |
| 2021 | 81 |
| 2022 | 22 |
| 2023 | 24 |
| 2024 | 179 |
| 2025 | 122 |