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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 37 |
| 1968 | 46 |
| 1969 | 37 |
| 1970 | 21 |
| 1971 | 13 |
| 1972 | 3 |
| 1974 | 1 |
| 1976 | 1 |
| 1977 | 4 |
| 1978 | 1 |
| 1980 | 1 |
| 1981 | 4 |
| 1982 | 4 |
| 1983 | 5 |
| 1984 | 9 |
| 1985 | 10 |
| 1986 | 17 |
| 1987 | 9 |
| 1988 | 9 |
| 1989 | 26 |
| 1990 | 26 |
| 1991 | 34 |
| 1992 | 30 |
| 1993 | 44 |
| 1994 | 39 |
| 1995 | 66 |
| 1996 | 77 |
| 1997 | 111 |
| 1998 | 86 |
| 1999 | 106 |
| 2000 | 139 |
| 2001 | 190 |
| 2002 | 205 |
| 2003 | 230 |
| 2004 | 211 |
| 2005 | 222 |
| 2006 | 279 |
| 2007 | 319 |
| 2008 | 314 |
| 2009 | 298 |
| 2010 | 304 |
| 2011 | 380 |
| 2012 | 418 |
| 2013 | 513 |
| 2014 | 631 |
| 2015 | 749 |
| 2016 | 766 |
| 2017 | 906 |
| 2018 | 668 |
| 2019 | 556 |
| 2020 | 684 |
| 2021 | 383 |
| 2022 | 39 |
| 2023 | 50 |
| 2024 | 507 |
| 2025 | 850 |