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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1958 | 1 |
| 1960 | 1 |
| 1961 | 1 |
| 1965 | 1 |
| 1966 | 3 |
| 1967 | 5 |
| 1968 | 8 |
| 1969 | 10 |
| 1970 | 21 |
| 1971 | 25 |
| 1972 | 58 |
| 1973 | 97 |
| 1974 | 132 |
| 1975 | 101 |
| 1976 | 87 |
| 1977 | 107 |
| 1978 | 122 |
| 1979 | 118 |
| 1980 | 117 |
| 1981 | 110 |
| 1982 | 88 |
| 1983 | 104 |
| 1984 | 119 |
| 1985 | 94 |
| 1986 | 102 |
| 1987 | 99 |
| 1988 | 131 |
| 1989 | 109 |
| 1990 | 116 |
| 1991 | 105 |
| 1992 | 109 |
| 1993 | 105 |
| 1994 | 73 |
| 1995 | 85 |
| 1996 | 89 |
| 1997 | 89 |
| 1998 | 84 |
| 1999 | 95 |
| 2000 | 126 |
| 2001 | 106 |
| 2002 | 123 |
| 2003 | 98 |
| 2004 | 127 |
| 2005 | 129 |
| 2006 | 116 |
| 2007 | 122 |
| 2008 | 147 |
| 2009 | 142 |
| 2010 | 130 |
| 2011 | 138 |
| 2012 | 138 |
| 2013 | 142 |
| 2014 | 135 |
| 2015 | 152 |
| 2016 | 147 |
| 2017 | 123 |
| 2018 | 122 |
| 2019 | 128 |
| 2020 | 113 |
| 2021 | 69 |
| 2022 | 17 |
| 2023 | 3 |
| 2024 | 28 |