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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1975 | 1 |
| 1977 | 8 |
| 1978 | 15 |
| 1979 | 23 |
| 1980 | 17 |
| 1981 | 23 |
| 1982 | 27 |
| 1983 | 15 |
| 1984 | 23 |
| 1985 | 29 |
| 1986 | 25 |
| 1987 | 49 |
| 1988 | 48 |
| 1989 | 60 |
| 1990 | 72 |
| 1991 | 51 |
| 1992 | 81 |
| 1993 | 89 |
| 1994 | 95 |
| 1995 | 116 |
| 1996 | 128 |
| 1997 | 103 |
| 1998 | 121 |
| 1999 | 109 |
| 2000 | 136 |
| 2001 | 118 |
| 2002 | 143 |
| 2003 | 123 |
| 2004 | 107 |
| 2005 | 119 |
| 2006 | 152 |
| 2007 | 130 |
| 2008 | 186 |
| 2009 | 142 |
| 2010 | 154 |
| 2011 | 151 |
| 2012 | 164 |
| 2013 | 170 |
| 2014 | 130 |
| 2015 | 172 |
| 2016 | 133 |
| 2017 | 127 |
| 2018 | 133 |
| 2019 | 137 |
| 2020 | 96 |
| 2021 | 44 |
| 2022 | 8 |
| 2023 | 8 |
| 2024 | 43 |