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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1979 | 1 |
| 1980 | 1 |
| 1981 | 1 |
| 1983 | 1 |
| 1984 | 2 |
| 1985 | 1 |
| 1987 | 6 |
| 1988 | 10 |
| 1989 | 14 |
| 1990 | 20 |
| 1991 | 12 |
| 1992 | 24 |
| 1993 | 61 |
| 1994 | 53 |
| 1995 | 60 |
| 1996 | 42 |
| 1997 | 28 |
| 1998 | 43 |
| 1999 | 39 |
| 2000 | 64 |
| 2001 | 65 |
| 2002 | 78 |
| 2003 | 56 |
| 2004 | 56 |
| 2005 | 83 |
| 2006 | 102 |
| 2007 | 108 |
| 2008 | 91 |
| 2009 | 73 |
| 2010 | 89 |
| 2011 | 87 |
| 2012 | 110 |
| 2013 | 87 |
| 2014 | 95 |
| 2015 | 79 |
| 2016 | 75 |
| 2017 | 84 |
| 2018 | 74 |
| 2019 | 79 |
| 2020 | 61 |
| 2021 | 30 |
| 2022 | 1 |
| 2024 | 3 |