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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 2 |
| 1965 | 2 |
| 1975 | 1 |
| 1976 | 2 |
| 1977 | 86 |
| 1978 | 371 |
| 1979 | 460 |
| 1980 | 519 |
| 1981 | 585 |
| 1982 | 554 |
| 1983 | 589 |
| 1984 | 658 |
| 1985 | 588 |
| 1986 | 551 |
| 1987 | 463 |
| 1988 | 413 |
| 1989 | 390 |
| 1990 | 328 |
| 1991 | 289 |
| 1992 | 210 |
| 1993 | 224 |
| 1994 | 181 |
| 1995 | 174 |
| 1996 | 159 |
| 1997 | 136 |
| 1998 | 132 |
| 1999 | 98 |
| 2000 | 105 |
| 2001 | 94 |
| 2002 | 101 |
| 2003 | 86 |
| 2004 | 67 |
| 2005 | 70 |
| 2006 | 54 |
| 2007 | 68 |
| 2008 | 58 |
| 2009 | 65 |
| 2010 | 70 |
| 2011 | 54 |
| 2012 | 42 |
| 2013 | 43 |
| 2014 | 30 |
| 2015 | 33 |
| 2016 | 26 |
| 2017 | 36 |
| 2018 | 16 |
| 2019 | 18 |
| 2020 | 26 |
| 2021 | 17 |
| 2022 | 32 |
| 2023 | 24 |
| 2024 | 13 |