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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1975 | 3 |
| 1977 | 23 |
| 1978 | 42 |
| 1979 | 73 |
| 1980 | 65 |
| 1981 | 46 |
| 1982 | 55 |
| 1983 | 72 |
| 1984 | 90 |
| 1985 | 72 |
| 1986 | 56 |
| 1987 | 50 |
| 1988 | 41 |
| 1989 | 60 |
| 1990 | 41 |
| 1991 | 105 |
| 1992 | 134 |
| 1993 | 174 |
| 1994 | 145 |
| 1995 | 113 |
| 1996 | 127 |
| 1997 | 137 |
| 1998 | 122 |
| 1999 | 122 |
| 2000 | 91 |
| 2001 | 133 |
| 2002 | 146 |
| 2003 | 139 |
| 2004 | 126 |
| 2005 | 90 |
| 2006 | 91 |
| 2007 | 89 |
| 2008 | 99 |
| 2009 | 85 |
| 2010 | 73 |
| 2011 | 77 |
| 2012 | 82 |
| 2013 | 102 |
| 2014 | 62 |
| 2015 | 62 |
| 2016 | 50 |
| 2017 | 34 |
| 2018 | 28 |
| 2019 | 19 |
| 2020 | 19 |
| 2021 | 8 |
| 2022 | 4 |
| 2023 | 1 |
| 2024 | 20 |
| 2025 | 8 |