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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 2 |
| 1953 | 1 |
| 1954 | 2 |
| 1955 | 1 |
| 1957 | 1 |
| 1958 | 1 |
| 1959 | 1 |
| 1962 | 2 |
| 1963 | 1 |
| 1964 | 23 |
| 1965 | 36 |
| 1966 | 60 |
| 1967 | 67 |
| 1968 | 108 |
| 1969 | 107 |
| 1970 | 125 |
| 1971 | 124 |
| 1972 | 149 |
| 1973 | 138 |
| 1974 | 146 |
| 1975 | 165 |
| 1976 | 143 |
| 1977 | 122 |
| 1978 | 91 |
| 1979 | 122 |
| 1980 | 119 |
| 1981 | 133 |
| 1982 | 135 |
| 1983 | 112 |
| 1984 | 136 |
| 1985 | 119 |
| 1986 | 131 |
| 1987 | 112 |
| 1988 | 108 |
| 1989 | 85 |
| 1990 | 97 |
| 1991 | 97 |
| 1992 | 89 |
| 1993 | 80 |
| 1994 | 82 |
| 1995 | 75 |
| 1996 | 74 |
| 1997 | 75 |
| 1998 | 38 |
| 1999 | 62 |
| 2000 | 61 |
| 2001 | 50 |
| 2002 | 15 |
| 2003 | 18 |
| 2004 | 12 |
| 2005 | 19 |
| 2006 | 15 |
| 2007 | 18 |
| 2008 | 17 |
| 2009 | 10 |
| 2010 | 27 |
| 2011 | 16 |
| 2012 | 17 |
| 2013 | 15 |
| 2014 | 21 |
| 2015 | 24 |
| 2016 | 17 |
| 2017 | 13 |
| 2018 | 16 |
| 2019 | 18 |
| 2020 | 16 |
| 2021 | 18 |
| 2022 | 13 |
| 2023 | 13 |
| 2024 | 4 |