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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1973 | 1 |
| 1975 | 4 |
| 1976 | 6 |
| 1977 | 10 |
| 1978 | 11 |
| 1979 | 9 |
| 1980 | 22 |
| 1981 | 20 |
| 1982 | 29 |
| 1983 | 33 |
| 1984 | 57 |
| 1985 | 60 |
| 1986 | 60 |
| 1987 | 49 |
| 1988 | 53 |
| 1989 | 69 |
| 1990 | 56 |
| 1991 | 43 |
| 1992 | 61 |
| 1993 | 57 |
| 1994 | 101 |
| 1995 | 66 |
| 1996 | 94 |
| 1997 | 87 |
| 1998 | 95 |
| 1999 | 83 |
| 2000 | 116 |
| 2001 | 121 |
| 2002 | 117 |
| 2003 | 106 |
| 2004 | 176 |
| 2005 | 142 |
| 2006 | 154 |
| 2007 | 132 |
| 2008 | 158 |
| 2009 | 160 |
| 2010 | 152 |
| 2011 | 145 |
| 2012 | 162 |
| 2013 | 144 |
| 2014 | 134 |
| 2015 | 126 |
| 2016 | 139 |
| 2017 | 170 |
| 2018 | 140 |
| 2019 | 131 |
| 2020 | 134 |
| 2021 | 145 |
| 2022 | 140 |
| 2023 | 177 |
| 2024 | 161 |
| 2025 | 51 |