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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 3 |
| 1972 | 10 |
| 1973 | 15 |
| 1974 | 54 |
| 1975 | 68 |
| 1976 | 124 |
| 1977 | 144 |
| 1978 | 168 |
| 1979 | 167 |
| 1980 | 166 |
| 1981 | 119 |
| 1982 | 117 |
| 1983 | 103 |
| 1984 | 114 |
| 1985 | 93 |
| 1986 | 114 |
| 1987 | 115 |
| 1988 | 109 |
| 1989 | 120 |
| 1990 | 128 |
| 1991 | 128 |
| 1992 | 144 |
| 1993 | 147 |
| 1994 | 134 |
| 1995 | 148 |
| 1996 | 149 |
| 1997 | 144 |
| 1998 | 164 |
| 1999 | 128 |
| 2000 | 126 |
| 2001 | 122 |
| 2002 | 124 |
| 2003 | 126 |
| 2004 | 108 |
| 2005 | 131 |
| 2006 | 138 |
| 2007 | 123 |
| 2008 | 112 |
| 2009 | 121 |
| 2010 | 118 |
| 2011 | 105 |
| 2012 | 112 |
| 2013 | 119 |
| 2014 | 88 |
| 2015 | 94 |
| 2016 | 82 |
| 2017 | 78 |
| 2018 | 89 |
| 2019 | 79 |
| 2020 | 79 |
| 2021 | 64 |
| 2022 | 33 |
| 2023 | 11 |
| 2024 | 2 |