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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 1 |
| 1980 | 1 |
| 1987 | 1 |
| 1988 | 2 |
| 1989 | 8 |
| 1990 | 21 |
| 1991 | 26 |
| 1992 | 18 |
| 1993 | 35 |
| 1994 | 45 |
| 1995 | 48 |
| 1996 | 32 |
| 1997 | 75 |
| 1998 | 67 |
| 1999 | 79 |
| 2000 | 83 |
| 2001 | 88 |
| 2002 | 74 |
| 2003 | 86 |
| 2004 | 97 |
| 2005 | 62 |
| 2006 | 57 |
| 2007 | 57 |
| 2008 | 74 |
| 2009 | 80 |
| 2010 | 74 |
| 2011 | 62 |
| 2012 | 52 |
| 2013 | 52 |
| 2014 | 58 |
| 2015 | 62 |
| 2016 | 46 |
| 2017 | 42 |
| 2018 | 34 |
| 2019 | 36 |
| 2020 | 28 |
| 2021 | 32 |
| 2022 | 22 |
| 2023 | 18 |
| 2024 | 9 |