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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1977 | 3 |
| 1978 | 9 |
| 1979 | 4 |
| 1980 | 2 |
| 1981 | 4 |
| 1982 | 6 |
| 1983 | 6 |
| 1984 | 4 |
| 1985 | 9 |
| 1986 | 10 |
| 1987 | 11 |
| 1988 | 18 |
| 1989 | 38 |
| 1990 | 54 |
| 1991 | 82 |
| 1992 | 82 |
| 1993 | 117 |
| 1994 | 94 |
| 1995 | 100 |
| 1996 | 76 |
| 1997 | 73 |
| 1998 | 102 |
| 1999 | 100 |
| 2000 | 142 |
| 2001 | 160 |
| 2002 | 197 |
| 2003 | 233 |
| 2004 | 161 |
| 2005 | 149 |
| 2006 | 135 |
| 2007 | 152 |
| 2008 | 136 |
| 2009 | 129 |
| 2010 | 148 |
| 2011 | 163 |
| 2012 | 161 |
| 2013 | 167 |
| 2014 | 138 |
| 2015 | 157 |
| 2016 | 129 |
| 2017 | 128 |
| 2018 | 109 |
| 2019 | 106 |
| 2020 | 112 |
| 2021 | 100 |
| 2022 | 53 |
| 2023 | 34 |
| 2024 | 12 |