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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 2 |
| 1968 | 1 |
| 1974 | 12 |
| 1975 | 28 |
| 1976 | 28 |
| 1977 | 30 |
| 1978 | 30 |
| 1979 | 44 |
| 1980 | 34 |
| 1981 | 31 |
| 1982 | 54 |
| 1983 | 42 |
| 1984 | 53 |
| 1985 | 46 |
| 1986 | 45 |
| 1987 | 50 |
| 1988 | 56 |
| 1989 | 58 |
| 1990 | 77 |
| 1991 | 107 |
| 1992 | 101 |
| 1993 | 98 |
| 1994 | 108 |
| 1995 | 123 |
| 1996 | 89 |
| 1997 | 159 |
| 1998 | 77 |
| 1999 | 127 |
| 2000 | 135 |
| 2001 | 136 |
| 2002 | 148 |
| 2003 | 205 |
| 2004 | 252 |
| 2005 | 297 |
| 2006 | 302 |
| 2007 | 344 |
| 2008 | 394 |
| 2009 | 460 |
| 2010 | 550 |
| 2011 | 644 |
| 2012 | 665 |
| 2013 | 682 |
| 2014 | 665 |
| 2015 | 744 |
| 2016 | 817 |
| 2017 | 760 |
| 2018 | 779 |
| 2019 | 782 |
| 2020 | 642 |
| 2021 | 430 |
| 2022 | 400 |
| 2023 | 301 |
| 2024 | 171 |