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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1946 | 1 |
| 1953 | 2 |
| 1954 | 5 |
| 1955 | 3 |
| 1956 | 5 |
| 1957 | 3 |
| 1958 | 9 |
| 1959 | 4 |
| 1960 | 7 |
| 1961 | 4 |
| 1962 | 1 |
| 1965 | 4 |
| 1966 | 18 |
| 1967 | 16 |
| 1968 | 42 |
| 1969 | 53 |
| 1970 | 76 |
| 1971 | 81 |
| 1972 | 85 |
| 1973 | 123 |
| 1974 | 136 |
| 1975 | 168 |
| 1976 | 140 |
| 1977 | 160 |
| 1978 | 158 |
| 1979 | 137 |
| 1980 | 174 |
| 1981 | 146 |
| 1982 | 138 |
| 1983 | 144 |
| 1984 | 170 |
| 1985 | 147 |
| 1986 | 141 |
| 1987 | 126 |
| 1988 | 120 |
| 1989 | 138 |
| 1990 | 140 |
| 1991 | 130 |
| 1992 | 117 |
| 1993 | 95 |
| 1994 | 105 |
| 1995 | 110 |
| 1996 | 104 |
| 1997 | 107 |
| 1998 | 97 |
| 1999 | 87 |
| 2000 | 74 |
| 2001 | 80 |
| 2002 | 78 |
| 2003 | 65 |
| 2004 | 77 |
| 2005 | 78 |
| 2006 | 75 |
| 2007 | 65 |
| 2008 | 55 |
| 2009 | 51 |
| 2010 | 61 |
| 2011 | 62 |
| 2012 | 69 |
| 2013 | 70 |
| 2014 | 65 |
| 2015 | 76 |
| 2016 | 68 |
| 2017 | 69 |
| 2018 | 57 |
| 2019 | 58 |
| 2020 | 60 |
| 2021 | 34 |
| 2022 | 28 |
| 2023 | 9 |
| 2024 | 3 |