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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 23 |
| 1967 | 71 |
| 1968 | 84 |
| 1969 | 97 |
| 1970 | 71 |
| 1971 | 88 |
| 1972 | 113 |
| 1973 | 117 |
| 1974 | 116 |
| 1975 | 132 |
| 1976 | 118 |
| 1977 | 139 |
| 1978 | 135 |
| 1979 | 129 |
| 1980 | 104 |
| 1981 | 102 |
| 1982 | 91 |
| 1983 | 108 |
| 1984 | 114 |
| 1985 | 123 |
| 1986 | 110 |
| 1987 | 113 |
| 1988 | 110 |
| 1989 | 116 |
| 1990 | 122 |
| 1991 | 100 |
| 1992 | 84 |
| 1993 | 94 |
| 1994 | 80 |
| 1995 | 100 |
| 1996 | 121 |
| 1997 | 129 |
| 1998 | 139 |
| 1999 | 158 |
| 2000 | 154 |
| 2001 | 154 |
| 2002 | 122 |
| 2003 | 159 |
| 2004 | 170 |
| 2005 | 178 |
| 2006 | 199 |
| 2007 | 204 |
| 2008 | 269 |
| 2009 | 288 |
| 2010 | 240 |
| 2011 | 236 |
| 2012 | 232 |
| 2013 | 202 |
| 2014 | 191 |
| 2015 | 173 |
| 2016 | 150 |
| 2017 | 123 |
| 2018 | 117 |
| 2019 | 103 |
| 2020 | 84 |
| 2021 | 61 |
| 2022 | 13 |
| 2023 | 3 |
| 2024 | 2 |