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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 1 |
| 1974 | 1 |
| 1977 | 1 |
| 1980 | 1 |
| 1986 | 1 |
| 1987 | 5 |
| 1988 | 89 |
| 1989 | 195 |
| 1990 | 195 |
| 1991 | 189 |
| 1992 | 178 |
| 1993 | 168 |
| 1994 | 155 |
| 1995 | 160 |
| 1996 | 131 |
| 1997 | 144 |
| 1998 | 157 |
| 1999 | 138 |
| 2000 | 144 |
| 2001 | 175 |
| 2002 | 148 |
| 2003 | 134 |
| 2004 | 116 |
| 2005 | 131 |
| 2006 | 133 |
| 2007 | 112 |
| 2008 | 112 |
| 2009 | 104 |
| 2010 | 80 |
| 2011 | 77 |
| 2012 | 84 |
| 2013 | 75 |
| 2014 | 76 |
| 2015 | 81 |
| 2016 | 77 |
| 2017 | 79 |
| 2018 | 61 |
| 2019 | 49 |
| 2020 | 70 |
| 2021 | 40 |
| 2022 | 41 |
| 2023 | 39 |
| 2024 | 24 |