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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 1 |
| 1987 | 28 |
| 1988 | 63 |
| 1989 | 52 |
| 1990 | 69 |
| 1991 | 64 |
| 1992 | 103 |
| 1993 | 103 |
| 1994 | 96 |
| 1995 | 135 |
| 1996 | 122 |
| 1997 | 100 |
| 1998 | 136 |
| 1999 | 152 |
| 2000 | 168 |
| 2001 | 128 |
| 2002 | 48 |
| 2003 | 34 |
| 2004 | 28 |
| 2005 | 27 |
| 2006 | 31 |
| 2007 | 36 |
| 2008 | 23 |
| 2009 | 15 |
| 2010 | 16 |
| 2011 | 15 |
| 2012 | 15 |
| 2013 | 10 |
| 2014 | 10 |
| 2015 | 11 |
| 2016 | 8 |
| 2017 | 13 |
| 2018 | 6 |
| 2019 | 12 |
| 2020 | 13 |
| 2021 | 4 |
| 2022 | 2 |
| 2025 | 3 |
| 2026 | 0 |