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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 41 |
| 1961 | 1 |
| 1962 | 2 |
| 1963 | 1 |
| 1965 | 139 |
| 1966 | 120 |
| 1967 | 146 |
| 1968 | 125 |
| 1969 | 138 |
| 1970 | 160 |
| 1971 | 173 |
| 1972 | 171 |
| 1973 | 160 |
| 1974 | 144 |
| 1975 | 141 |
| 1976 | 157 |
| 1977 | 155 |
| 1978 | 169 |
| 1979 | 118 |
| 1980 | 131 |
| 1981 | 138 |
| 1982 | 147 |
| 1983 | 151 |
| 1984 | 155 |
| 1985 | 154 |
| 1986 | 159 |
| 1987 | 154 |
| 1988 | 146 |
| 1989 | 145 |
| 1990 | 141 |
| 1991 | 134 |
| 1992 | 104 |
| 1993 | 89 |
| 1994 | 110 |
| 1995 | 120 |
| 1996 | 118 |
| 1997 | 117 |
| 1998 | 118 |
| 1999 | 117 |
| 2000 | 111 |
| 2001 | 116 |
| 2002 | 125 |
| 2003 | 110 |
| 2004 | 117 |
| 2005 | 103 |
| 2006 | 100 |
| 2007 | 106 |
| 2008 | 126 |
| 2009 | 103 |
| 2010 | 99 |
| 2011 | 92 |
| 2012 | 81 |
| 2013 | 77 |
| 2014 | 69 |
| 2015 | 71 |
| 2016 | 66 |
| 2017 | 63 |
| 2018 | 58 |
| 2019 | 56 |
| 2020 | 64 |
| 2021 | 72 |
| 2022 | 77 |
| 2023 | 56 |
| 2024 | 17 |