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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 1 |
| 1970 | 1 |
| 1974 | 1 |
| 1976 | 1 |
| 1978 | 2 |
| 1979 | 3 |
| 1980 | 20 |
| 1981 | 27 |
| 1982 | 39 |
| 1983 | 32 |
| 1984 | 37 |
| 1985 | 40 |
| 1986 | 45 |
| 1987 | 52 |
| 1988 | 59 |
| 1989 | 84 |
| 1990 | 74 |
| 1991 | 105 |
| 1992 | 101 |
| 1993 | 133 |
| 1994 | 140 |
| 1995 | 171 |
| 1996 | 172 |
| 1997 | 237 |
| 1998 | 265 |
| 1999 | 308 |
| 2000 | 338 |
| 2001 | 469 |
| 2002 | 566 |
| 2003 | 621 |
| 2004 | 801 |
| 2005 | 1046 |
| 2006 | 1363 |
| 2007 | 1911 |
| 2008 | 2512 |
| 2009 | 2760 |
| 2010 | 3098 |
| 2011 | 3459 |
| 2012 | 3458 |
| 2013 | 3803 |
| 2014 | 3785 |
| 2015 | 3814 |
| 2016 | 3673 |
| 2017 | 3621 |
| 2018 | 3685 |
| 2019 | 3669 |
| 2020 | 3766 |
| 2021 | 4030 |
| 2022 | 3652 |
| 2023 | 3659 |
| 2024 | 3297 |
| 2025 | 1138 |