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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 2 |
| 1967 | 1 |
| 1968 | 2 |
| 1970 | 4 |
| 1973 | 3 |
| 1974 | 2 |
| 1978 | 1 |
| 1979 | 1 |
| 1980 | 2 |
| 1981 | 1 |
| 1982 | 1 |
| 1984 | 2 |
| 1986 | 7 |
| 1987 | 5 |
| 1988 | 4 |
| 1989 | 8 |
| 1990 | 6 |
| 1991 | 7 |
| 1992 | 15 |
| 1993 | 9 |
| 1994 | 22 |
| 1995 | 20 |
| 1996 | 28 |
| 1997 | 28 |
| 1998 | 38 |
| 1999 | 33 |
| 2000 | 50 |
| 2001 | 67 |
| 2002 | 72 |
| 2003 | 72 |
| 2004 | 89 |
| 2005 | 98 |
| 2006 | 138 |
| 2007 | 132 |
| 2008 | 159 |
| 2009 | 199 |
| 2010 | 242 |
| 2011 | 284 |
| 2012 | 248 |
| 2013 | 278 |
| 2014 | 285 |
| 2015 | 288 |
| 2016 | 315 |
| 2017 | 329 |
| 2018 | 343 |
| 2019 | 367 |
| 2020 | 454 |
| 2021 | 486 |
| 2022 | 467 |
| 2023 | 427 |
| 2024 | 312 |