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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 4 |
| 1965 | 42 |
| 1966 | 72 |
| 1967 | 76 |
| 1968 | 87 |
| 1969 | 129 |
| 1970 | 119 |
| 1971 | 119 |
| 1972 | 108 |
| 1973 | 135 |
| 1974 | 182 |
| 1975 | 156 |
| 1976 | 145 |
| 1977 | 150 |
| 1978 | 146 |
| 1979 | 126 |
| 1980 | 149 |
| 1981 | 117 |
| 1982 | 147 |
| 1983 | 133 |
| 1984 | 127 |
| 1985 | 128 |
| 1986 | 116 |
| 1987 | 111 |
| 1988 | 125 |
| 1989 | 141 |
| 1990 | 122 |
| 1991 | 126 |
| 1992 | 119 |
| 1993 | 119 |
| 1994 | 110 |
| 1995 | 96 |
| 1996 | 99 |
| 1997 | 131 |
| 1998 | 97 |
| 1999 | 108 |
| 2000 | 101 |
| 2001 | 108 |
| 2002 | 110 |
| 2003 | 101 |
| 2004 | 114 |
| 2005 | 167 |
| 2006 | 155 |
| 2007 | 121 |
| 2008 | 121 |
| 2009 | 106 |
| 2010 | 125 |
| 2011 | 113 |
| 2012 | 106 |
| 2013 | 108 |
| 2014 | 91 |
| 2015 | 101 |
| 2016 | 112 |
| 2017 | 96 |
| 2018 | 55 |
| 2019 | 70 |
| 2020 | 63 |
| 2021 | 44 |
| 2022 | 7 |
| 2023 | 9 |
| 2024 | 3 |